Source: http://www.google.com/patents/US6253167?dq=oakley+5,387,949
Timestamp: 2016-07-01 13:38:13
Document Index: 349965288

Matched Legal Cases: ['art1', 'art1', 'art 0', 'art 5', 'art 0', 'art 1', 'art 2', 'art 3', 'art 4', 'art 5', 'arts 0', 'art 1', 'art 2', 'application No. 09', 'application No. 09', 'application No. 09', 'application No. 09', 'application No. 09', 'application No. 09', 'art 4', 'art 3']

Patent US6253167 - Client apparatus, image display controlling method, shared virtual space ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA plurality of users can share a virtual life object and breed the same. A growth parameter control table is stored in a hard disk of an AO server. When a predetermined event is inputted from a client PC 1 or PC 2, a growth parameter, in the growth parameter control table, corresponding to the inputted...http://www.google.com/patents/US6253167?utm_source=gb-gplus-sharePatent US6253167 - Client apparatus, image display controlling method, shared virtual space providing apparatus and method, and program providing mediumAdvanced Patent SearchPublication numberUS6253167 B1Publication typeGrantApplication numberUS 09/084,515Publication dateJun 26, 2001Filing dateMay 26, 1998Priority dateMay 27, 1997Fee statusLapsedPublication number084515, 09084515, US 6253167 B1, US 6253167B1, US-B1-6253167, US6253167 B1, US6253167B1InventorsKoichi Matsuda, Hiroyuki HanayaOriginal AssigneeSony CorporationExport CitationBiBTeX, EndNote, RefManPatent Citations (12), Non-Patent Citations (27), Referenced by (194), Classifications (22), Legal Events (6) External Links: USPTO, USPTO Assignment, EspacenetClient apparatus, image display controlling method, shared virtual space providing apparatus and method, and program providing medium
US 6253167 B1Abstract
A plurality of users can share a virtual life object and breed the same. A growth parameter control table is stored in a hard disk of an AO server. When a predetermined event is inputted from a client PC 1 or PC 2, a growth parameter, in the growth parameter control table, corresponding to the inputted event is updated. According to the updated growth parameter, the client PC 1 or PC 2 changes the state of the virtual life object existing in a shared virtual space.
What is claimed is: 1. A server for providing access to a shared virtual space, said server comprising:
receiving means for receiving a growth parameter of a virtual creature being reared by a first user via a first input from a first apparatus and by a second user via a second input from a second apparatus and existing in said shared virtual space, said growth parameter changing as a predetermined event occurs; and display-controlling means for interpreting a script for dynamically changing one or both of an external view or a behavioral sequence of said virtual creature based on said growth parameter to control a display of said virtual creature according to said growth parameter, wherein said predetermined event is based on one of said first input from said first client apparatus, said second input from said second client apparatus or a passage of time. 2. A display-controlling method for a first client apparatus connected along with a second client apparatus to a server through a network to gain access to a shared virtual space, comprising the steps of:
receiving a growth parameter of a virtual creature being reared by a first user via a first input from said first client apparatus and by a second user via a second input from said second client apparatus and existing in said shared virtual space, said growth parameter being transmitted from said server, said growth parameter changing as a predetermined event occurs; and interpreting a script for dynamically changing one or both of an external view or a behavioral sequence of said virtual creature based on said growth parameter received from said server to control a display of said virtual creature according to said growth parameter; wherein said predetermined event is one of said first input from said first client apparatus, said second input from said second client apparatus or a passage of time. 3. A program-providing medium for providing a program for controlling a first client apparatus connected along with a second client apparatus to a server through a network to gain access to a shared virtual space, said program comprising the steps of:
receiving a growth parameter of a virtual creature being reared by a first user via a first input from said first client apparatus and by a second user via a second input from said second client apparatus and existing in said shared virtual space, said growth parameter being transmitted from said server, said growth parameter changing as a predetermined event occurs; interpreting a script for dynamically changing one or both of an external view or a behavioral sequence of said virtual creature based on said growth parameter received from said server to control a display of said virtual creature according to said growth parameter; wherein said predetermined event is one of said first input from said first client apparatus, said second input from said second client apparatus or a passage of time. 4. A program-providing medium as claimed in claim 3, wherein said growth parameter received in said receiving step of said program is a value indicative of a degree of outer growth of said virtual creature to be calculated based on a time passed from the birth of said virtual creature.
5. A program-providing medium as claimed in claim 3, wherein said growth parameter received in said receiving step of said program is a value indicative of a degree of inner growth of said virtual creature to be calculated based on an event caused for said virtual creature.
6. A program-providing medium as claimed in claim 3, wherein, according to a type of said event caused for said virtual creature, a different value is calculated for said growth parameter received in said receiving step of said program.
7. An apparatus for providing a shared virtual space to a plurality of client apparatuses interconnected through a network, comprising:
means for controlling a growth parameter for specifying an autonomous behavior of a virtual life object being reared by a first user via a first input from said first client apparatus and by a second user via a second input from said second client apparatus and existing in said shared virtual space, said growth parameter changing as a predetermined event occurs; and means for transferring said growth parameter read from said controlling means upon request from said first client apparatus or an occurrence of said predetermined event to one or both of said first client apparatus or said second client apparatus; wherein said predetermined event is one of an input from said first client apparatus, an input from said second client apparatus or a passage of time. 8. A method of providing a shared virtual space to a plurality of client apparatuses interconnected through a network, comprising the steps of:
controlling a growth parameter for specifying an autonomous behavior of a virtual life object being reared by a first user via a first input from a first client apparatus and by a second user via a second input from a second client apparatus and existing in said shared virtual space, said growth parameter changing as a predetermined event occurs; and transferring said growth parameter read in said controlling step upon request from said first client apparatus or an occurrence of said predetermined event to one or both of said first client apparatus or said second client apparatus; wherein said predetermined event is one of an input from said first client apparatus, an input from said second client apparatus or a passage of time. 9. A program-providing medium for providing a program for controlling an apparatus for providing a shared virtual space to a plurality of client apparatuses interconnected through a network, said program comprising the steps of:
controlling a growth parameter for specifying an autonomous behavior of a virtual life object being reared by a first user via a first input from a first client apparatus and by a second user via a second input from a second client apparatus and existing in said shared virtual space, said growth parameter changing as a predetermined event occurs; and transferring said growth parameter read in said controlling step upon request from said first client apparatus or an occurrence of said predetermined event to one or both of said first client apparatus or said second client apparatus, wherein said predetermined event is one of an input from said first client apparatus, an input from said second client apparatus or a passage of time. 10. A program-providing medium as claimed in claim 9, wherein said program holds a birth date of said virtual life object in a growth parameter control table, calculates said growth parameter according to an age of said virtual life object based on a time passed from said birth date, and updates said growth parameter in said growth parameter control table.
11. A program-providing medium as claimed in claim 9, wherein, in the controlling step of said program, a growth parameter is independently controlled for each of a plurality of virtual life objects.
12. A program-providing medium as claimed in claim 9, wherein said program further comprises the steps of:
controlling a client control table for controlling an identification of a client who accessed said virtual life object by registering said identification into a client identification control table; and starting an event indicative of intimacy emotional expression according to access by the client having said identification controlled by said client identification control table. 13. A program-providing medium as claimed in claim 9, wherein said program further comprises the steps of:
registering, as a keeper of said virtual life object, an identification of a client who has set or reset said virtual life object into a keeper control table; disabling an updating of said identification of said client until a life allocated to said virtual life object expires; and deleting said identification of said client at said expiration. 14. A program-providing medium as claimed in claim 13, wherein, when said life allocated to said virtual life object expires, a child of said virtual life object is generated, and said identification of said keeper is given to said child.
15. A program-providing medium as claimed in claim 9, wherein said program further comprises the steps of:
recording a history of a client who has set or reset said virtual life object into a history control table to control said history; and starting a behavioral sequence indicative of intimacy emotional expression corresponding to a frequency of access from said client controlled by said history control table. 16. A program-providing medium as claimed in claim 9, wherein said program further comprises the step of controlling a position of said virtual life object in said shared virtual space according to a position of a client in said shared virtual space, thereby performing behavioral control.
17. A program providing medium as claimed in claim 9, wherein said program further comprises the step of causing said virtual life object to report to a keeper at a time when said keeper is not accessing said shared virtual space.
18. A program providing medium as claimed in claim 17, wherein said reporting step of said program comprises reporting to a keeper by one of a chat window based on voice, a chat window based on text, a transmission to a pager; an e-mail message, a PHS mail message, a voice message, or a facsimile message.
19. The program-providing medium of claim 9, wherein said growth parameter is selected from the group consisting of a an activity index, an intelligence quotient, a language index, a sociability index, and an independence index.
20. The program-providing medium of claim 17, wherein said program further comprises the step of allowing said keeper to communicate with said virtual life object by one of an e-mail, PHS mail, a signal generated by a telephone, a voice browser, a chat window based on voice, or a chat window based on text.
21. A server for providing access to a shared virtual space, said server comprising:
an input device for receiving a growth parameter of a virtual creature being reared by a first user via a first input from a first apparatus and by a second user via a second input from a second apparatus and existing in said shared virtual space, said growth parameter changing as a predetermined event occurs; and a display controller for interpreting a script for dynamically changing one or both of an external view or a behavioral sequence of said virtual creature based on said growth parameter to control a display of said virtual creature according to said growth parameter, wherein said predetermined event is based on one of said first input from said first client apparatus, said second input from said second client apparatus or a passage of time. 22. The method of claim 8, wherein a birth date of said virtual life object is stored in a storage device, further comprising the steps of:
calculating said growth parameter according to an age of said virtual life object based on a time passed from said birth date stored in said storage device; and updating said growth parameter. 23. The method of claim 8, wherein the controlling step comprises independently controlling a growth parameter for each of a plurality of virtual life objects.
24. The method of claim 8, further comprising the steps of:
storing history information in a storage medium regarding a client's history of interactions with said virtual life object; and starting an event indicative of said virtual life object's degree of familiarity with said client according to said history information. 25. The method of claim 8, further comprising the steps of
registering, as a keeper of said virtual life object, an identification of a client who has set or reset said virtual life object into a keeper control table; disabling an updating of said identification of said client until a life allocated to said virtual life object expires; and deleting said identification of said client at said expiration. 26. The method of claim 8, further comprising the steps of;
recording a history of a client who has set or reset said virtual life object into a history control table to control said history; and starting a behavioral sequence indicative of intimacy emotional expression corresponding to a frequency of access from said client controlled by said history control table. 27. The method of claim 8, further comprising the step of controlling a position of said virtual life object in said shared virtual space according to a position of a client in said shared virtual space, thereby performing behavioral control.
28. The method of claim 8, further comprising the step of causing said virtual life object to report to a keeper at a time when said keeper is not accessing said shared virtual space.
29. The method of claim 8, wherein said growth parameter is selected from the group consisting of an activity index, an intelligence quotient, a language index, a sociability index, and an independence index.
30. The method of claim 25, wherein, when said life allocated to said virtual life object expires, a child of said virtual life object is generated, and said identification of said keeper is given to said child.
31. The method of claim 28, wherein said reporting step comprises reporting to a keeper by one of a chat window based on voice, a chat window based on text, a transmission to a pager; an e-mail message, a PHS mail message, a voice message, or a facsimile message.
32. The method of claim 28, further comprising the step of allowing said keeper to communicate with said virtual life object by one of an e-mail, PHS mail, a signal generated by a telephone, a voice browser, a chat window based on voice, or a chat window based on text.
The present invention generally relates to a client apparatus, an image display controlling method, a shared virtual space providing apparatus and a method thereof, and program providing medium. More particularly, the present invention relates to a client apparatus, an image display controlling method, a shared virtual space providing apparatus and a method thereof, and program providing medium that are capable of growing a virtual creature object in a process closer to that of a real creature.
A cyberspace service named Habitat (registered trademark) is known in so-called personal computer communications services such as NIFTY-Serve (registered trademark) of Japan and CompuServe (registered trademark) of US in which a plurality of users connect their personal computers via modems and public telephone networks to the host computers installed at the centers of the services to access them in predetermined protocols. Development of Habitat started in 1985 by Lucas Film of the US, operated by Quantum Link, one of US commercial networks, for about three years. Then, Habitat started its service in NIFTY-Serve as Fujitsu Habitat (trademark) in February 1990.
In Habitat, users can send their alter egos called avatars (the incarnation of a god figuring in the Hindu mythology) into a virtual city called Populopolis drawn by two-dimensional graphics to have a chat (namely, a realtime conversation based on text entered and displayed) with each other. For further details of Habitat, refer to the Japanese translation pp. “282-307” of “Cyberspace: First Steps,” Michael Benedikt, ed., 1991, MIT Press Cambridge, Mass., ISBN0-262-02327-X, the translation being published Mar. 20, 1994, by NTT Publishing, ISBN4-87188-265-9C0010.
In the conventional cyberspace systems operated by personal computer communications services such as mentioned above, a virtual street and the inside of a room, for example, are drawn in two-dimensional graphics. Therefore, moving an avatar in the depth direction is realized simply by moving it up and down in the background of the two-dimensional graphics. This is a poor way of simulating walking and movement in a virtual space. Also, the two-dimensional virtual space in which a user's avatar and the avatar of another user are displayed is viewed from a viewpoint of a third party, thereby impairing the sense of simulated experience.
To overcome this drawback, a capability that enables a user to walk as desired with the viewpoint of the avatar of the user in a virtual space represented in three-dimensional graphics is realized by use of a three-dimensional graphics data description language called VRML (Virtual Reality Modeling Language) as disclosed in Japanese Patent Laid-open No. Hei 9-81781 corresponding to U.S. patent application Ser. No. 678,340. Considerations about various cyberspaces in which chat is made by use of the avatar of a user are described in NIKKEI Electronics, Sep. 9, 1996, No. 670, pp. 151-159.
Recently, breeding simulation games for breeding tropical fish and a virtual creature having artificial intelligence living in a virtual world for example have come to be available as personal computer software programs. A product is also known that displays a simulated pet such as a dog or a cat on an electronic notepad to enjoy the process of its growth (refer to NIKKEI Electronics, Apr. 7, 1997, No. 686, pp. 131-134). In addition, “Tamagotchi” (registered trademark) developed and commercialized by Bandai Co. is widely known that is an egg-sized portable virtual reality pet with a breeding simulation game program as mentioned above incorporated.
Virtual reality pets of this type have a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory) and so on mounted on a single-chip LSI (Large Scale Integration), a breeding simulation game program being stored in the ROM, the figure and state of the pet being displayed on an LCD (Liquid Crystal Display) device. The user gives such instructions by operating buttons as “feed” and “groom,” for example, as necessary for breeding the virtual reality creature as a pet. As a result of caring, the virtual reality creature displayed on the LCD grows stepwise from an egg to a chick to a grown-up bird for example in its external view.
The virtual reality creature is programmed such that proper instructions help the virtual reality creature grow without problems and improper instructions make it sick or, in the worst case, die. Further, the virtual reality creature is programmed to make various requests based on the time elapsing from its birth provided by an incorporated calendar timer. For example, in the nighttime zone, the virtual reality creature requests a sleep and, in the mealtime zone, it requests food. In other times, the virtual reality creature requests, at random, snack and play for example. If the user fails to answer these requests properly, the growth of the virtual reality creature may be retarded or its character worsens. If the user answers properly, the life of the virtual reality creature is lengthened.
Japanese Patent Laid-open No. Hei 07-160853 corresponding to U.S. Pat. No. 5,572,646 discloses a technology applicable to an electronic notepad for example for displaying images according to the growth processes of a virtual reality creature such as an animal or a plant. To be more specific, bit-map images representing the growth processes of a plant character for example are stored in the ROM in the electronic notepad. The plant character according to the degree of growth is displayed on the LCD of the electronic notepad and, at the same time, characters representing plant growing elements (water, light, and fertilizer for example) are displayed. Necessary amounts of these growing elements are inputted by operating corresponding keys on the electronic notepad. The inputted values are set to a water amount register, a light amount register, and a fertilizer amount register respectively in the RAM of the electronic notepad. Based on the values set to these registers, a new degree of growth is computed. Then, the plant character corresponding to the computed degree of growth is read from the ROM to be displayed on the LCD. Thus, the plant growth process according to the state of cultivation by the user is displayed.
In the above-mentioned virtual reality pet, a virtual creature programmed beforehand is handled as one entity, in which a breeding simulation game progresses in a one-to-one relationship between the virtual reality pet and its keeper, the owner of the virtual reality pet. Therefore, it is impossible for remote persons other than the keeper to breed a virtual reality pet or observe its growth process. It is also impossible for two or more persons to share and breed one virtual reality creature.
Comparison between a virtual creature based on the above-mentioned virtual reality pet and a creature in the real world indicates that the virtual reality pet has no communication with other users than its keeper while the creature in the real world communicates with two or more human beings for its character shaping. This is a definite difference in growth process between these two creatures.
In the image displaying method for the virtual reality creature disclosed in Japanese Published Unexamined Patent Application No. Hei 07-160853 for example, the bit-map images representing the growth process stages of the character of the virtual reality creature are stored beforehand in the ROM. Then, according to the degree of growth, the character of the virtual reality creature is altered stepwise. Therefore, this approach cannot dynamically alter the creature's appearance according the change in height and weight for example taking place in the growth process of the creature. Implementing this dynamic alteration, if possible, requires a preparation of huge amounts of bit map images beforehand, which is not realistic.
It is therefore an object of the present invention to provide a shared virtual space providing system that enables two or more users to share a virtual creature to communicate with and breed it for shaping its character. At the same time, this system dynamically changes the external appearance and the behavior of the virtual creature as it grows, thereby expressing the growth process close to that of a real creature.
In carrying out the invention and according to one aspect thereof, there is provided a client apparatus described in claim 1 connected along with another client apparatus to a server through a network to gain access to a shared virtual space, including: a receiving means for receiving a growth parameter of a virtual life object existing in the shared virtual space, the growth parameter being transmitted from the server, the growth parameter changing as a predetermined event occurs; and a display controlling means for interpreting a script for dynamically changing one or both of an external view or a behavioral sequence of the virtual life object based on the growth parameter received from the server to control display of the virtual life object according to the growth parameter.
In carrying out the invention and according to another aspect thereof, there is provided a display controlling method described in claim 2 for a client apparatus connected along with another client apparatus to a server through a network to gain access to a shared virtual space, including the steps of: receiving a growth parameter of a virtual life object existing in the shared virtual space, the growth parameter being transmitted from the server, the growth parameter changing as a predetermined event occurs; and interpreting a script for dynamically changing one or both of an external view or a behavioral sequence of the virtual life object based on the growth parameter received from the server to control display of the virtual life object according to the growth parameter.
In carrying out the invention and according to still another aspect thereof, there is provided a program-providing medium described in claim 3 for providing a program for controlling a client apparatus connected along with another client apparatus to a server through a network to gain access to a shared virtual space, the program including the steps of: receiving a growth parameter of a virtual life object existing in the shared virtual space, the growth parameter being transmitted from the server, the growth parameter changing as a predetermined event occurs; and interpreting a script for dynamically changing one or both of an external view or a behavioral sequence of the virtual life object based on the growth parameter received from the server to control display of the virtual life object according to the growth parameter.
In carrying out the invention and according to yet another aspect thereof, there is provided a shared virtual space providing apparatus described in claim 7 for providing a shared virtual space to a plurality of client apparatuses interconnected through a network, including: a controlling means for controlling a growth parameter for specifying an autonomous behavior of a virtual life object existing in the shared virtual space, the growth parameter changing as a predetermined event occurs; and a transferring means for transferring the growth parameter read from the controlling means upon request from the client apparatus or occurrence of the predetermined event to one or both of the requesting client apparatus or another client apparatus.
In carrying out the invention and according to a different aspect thereof, there is provided a shared virtual space providing method described in claim 8 for providing a shared virtual space to a plurality of client apparatuses interconnected through a network, including the steps of: controlling a growth parameter for specifying an autonomous behavior of a virtual life object existing in the shared virtual space, the growth parameter changing as a predetermined event occurs; and transferring the growth parameter read from the controlling step upon request from the client apparatus or occurrence of the predetermined event to one or both of the requesting client apparatus or another client apparatus.
In carrying out the invention and according to a still different aspect thereof, there is provided a program providing medium described in claim 9 for providing a program for controlling a shared virtual space providing apparatus for providing a shared virtual space to a plurality of client apparatuses interconnected through a network, the program including the steps of: controlling, by a growth parameter control table, a growth parameter for specifying an autonomous behavior of a virtual life object existing in the shared virtual space, the growth parameter changing as a predetermined event occurs; and transferring the growth parameter read from the controlling step upon request from the client apparatus or occurrence of the predetermined event, to one or both of the requesting client apparatus or another client apparatus.
In the client apparatus described in claim 1, the display controlling method described in claim 2, and the program-providing medium described in claim 3, a script program for dynamically changing one or both of the external view and the behavioral sequence of a virtual life object based on the growth parameters transferred from this server is interpreted and executed, thereby controlling the display of the virtual life object according to the growth parameters.
In the shared virtual space providing apparatus described in claim 7, the shared virtual space providing method described in claim 8, and the program providing medium described in claim 9, the growth parameters are controlled and, at the same time, a growth parameter is read upon request from a client apparatus or occurrence of a predetermined event and this parameter is sent to one or both of the requesting client apparatus and another client apparatus.
FIG. 3 is a block diagram illustrating an example of a constitution of a shared virtual space providing system associated with the present invention;
FIG. 11 is a diagram for describing virtual life object nodes constituting a 3D object;
FIG. 13 is a diagram for describing virtual life object physique index;
FIG. 14 is a diagram for describing virtual life object mood index;
FIG. 15 is a diagram for describing virtual life object activity index;
FIG. 16 is a diagram for describing virtual life object intelligent quotient;
FIG. 17 shows a photograph indicative of a display example of a shared virtual space;
FIG. 18 shows a photograph indicative of another display example of the shared virtual space;
FIG. 19 shows a photograph indicative of still another display example of the shared virtual space;
FIG. 20 shows a photograph indicative of yet another display example of the shared virtual space;
FIG. 21 shows a photograph indicative of a different display example of the shared virtual space; and
FIG. 22 shows a photograph indicative of a still different display example of the shared virtual space.
Details of VRML are described in the Japanese translation of “VRML: Browsing & Building Cyberspace,” Mark Pesce, 1995, New Readers Publishing, ISBN 1-56205-498-8, the translation being entitled “Getting to Know VRML: Building and Browsing Three-Dimensional Cyberspace,” translated by Kouichi Matsuda, Terunao Gamaike, Shouichi Takeuchi, Yasuaki Honda, Junichi Rekimoto, Masayuki Ishikawa, Takeshi Miyashita and Kazuhiro Hara, published Mar. 25, 1996, Prenticehall Publishing, ISBN4-931356-37-0, as well as “Most Recent Trend of VRML And CyberPassage,” Koichi Matsuda and Yasuaki Honda, the bit Magazine, Kyoritsu Publishing, 1996, Vol. 28, No. 7, pp. 29-36, No. 8, pp. 57-65, No. 9, pp. 29-36, No. 10, pp. 49-58.
The authorized and complete specifications of the Virtual Reality Modeling Language Version 2.0, ISO/IEC CD 14772 released on Aug. 4, 1996 is made public in ht tp://webspace.sgi.com/moving-worlds/spec/index.html and its Japanese version is made public in http://www.webcity. co.jp/info/andoh/VRML/vrml2.0/spec-jp/index.html.
Further, for the browser for VRML 2.0 and the software for shared server, Sony Corporation, the present applicant, has developed and commercialized as “Community Place Browser/Bureau (registered trademark), of which beta version is downloadable from the Internet home page of Sony, http://vs.sony.co.jp.
To build a three-dimensional space by use of VRML 2.0, a VRML file for representing a desired content is created by generating graphics data indicative of the shape and behavior of an object (or a model) in the virtual space by use of VRML (model creation), adding the model in the virtual space displayed on the screen to a switch (or a sensor) for generating an event when the user clicks the model with the mouse for example, programming (or scripting) a script for realizing an event to be generated when the sensor is pointed, and relating (or routing) between graphics data and script (hereafter, common nodes such as write specified in graphics data, script, and VRML are also generically referred to as nodes) such as operating the sensor and starting the script.
For example, http://www.ses.co.jp/SES/STAFF/k an/howto/howto1.html describes in detail a method of writing VRML 2.0 and provides sample data.
In actual operation, the processing, is transmitted to the script file in which the routed event is described in the script node and the external script file is executed. The external script file is received through eventIn (event entrance) defined in it and the processing described in that file is executed. When this processing has come to an end, the processing result is returned through eventOut (event exit) to the routing of the VRML file. The VRML file executes this returned result, upon which the series of Behavior processing operations come to an end.
Details of the Behavior mechanism is disclosed in Section 4 “Concept” in the Specifications “The Virtual Reality Modeling Language Version 2.0,” ISO/IEC CD 14772, Aug. 4, 1996 which is made public in http://webspac e.sgi.com/moving-worlds/spec/part1/concepts.html and its Japanese version http://www.webcity.co.jp/info/ando h/VRML/vrml2.0/spec-jp/part1/concepts.html. This section describes the key concepts to use of the VRML specifications. These concepts include various general node-related items such as a method of linking a node to a scene graph, a method in which a node generates or receives an event, a method of generating a node type by a prototype, a method in which a node type is added to VRML and then exported to be made available from outside, and a method of incorporating a script to operate as a program into a VRML file.
The following describes a technology in which, by application of the mechanism for realizing the above-mentioned autonomous movement (Behavior) of VRML 2.0, a virtual life object is created in a shared virtual space, growth parameters (external growth or internal growth (personality)) that change according to the generation of an event such as a user operation or passing of a predetermined time are controlled by a server, and a script program for dynamically change one or both of the external view (shape, attitude, size, color, and so on) and the behavioral sequence of the created virtual life object based on the growth parameters transferred from this server is interpreted and executed, thereby displaying the virtual life object according to the growth parameters.
FIG. 4 is a schematic block diagram illustrating a hardware constitution of the client PC 1.
In FIG. 4, reference numeral 30 denotes a CPU (Central Processing Unit) for controlling this client PC. Reference numeral 31 denotes a hard disk storing VRML contents composed of a VRML 2.0 file and a growth script program for a shared virtual life by Java (registered trademark of Sun Microsystems, Inc.), and data about the keeper of the virtual creature. Reference numeral 32 denotes a CD-ROM drive for reading VRML contents stored in a CD-ROM disc 33. Reference numeral 34 denotes a ROM storing a BIOS (Basic Input/Output System) and so on. Reference numeral 35 denotes a sound processor connected to a microphone 36 and left and right speakers 37 and 38. Reference numeral 39 denotes a MODEM through which this client PC is connected to the Internet. Reference numeral 40 denotes an I/O (Input/Output) interface connected to a mouse 41 and a keyboard 42. Reference numeral 43 denotes a graphics processor incorporating VRAM (Video RAM) 44. Reference numeral 45 denotes a CRT monitor. Reference numeral 46 denotes a RAM.
Referring to FIG. 5, the home page of the Web site that provides the VRML content is browsed by use of the WWW browser as shown in (1). In this example, home page http://pc.sony.co.jp/sapari/ is browsed. Next, as shown in (2), the users of the client PC 1 and the client PC 2 download the VRML content composed of the VRML 2.0 file and the script program (the growth script program written in Java) for realizing an autonomous movement (Behavior) in the VRML space.
Then, as shown in FIG. 6, in the client PC 1 and the client PC 2, the VRML 2.0 file downloaded and stored in the local HDD 31 is interpreted and executed by Community Place Browser, which is a VRML 2.0 browser. Next, as shown in (3), the client PCs ask the WLS 11 for the URL of the shared server 12 based on VSCP (Virtual Society Server Client Protocol). In response, as shown in (4), the WLS 11 references the shared server URL control table stored in the HDD 11 a and sends the URL of the shared server 12 to the client PC 1 and the client PC 2.
Using this URL, the client PC 1 and the client PC 2 are connected to the shared server 12 as shown in FIG. 7. As a result, as shown in (5), shared messages associated with the position and movement of the shared 3D object are transmitted through this shared server 12. These messages are transferred as shown in (6) to realize the multi-user environment.
The following describes the AO server 13 that controls the behavior of a virtual life object existing in the shared virtual space. The AO server 13 transfers data associated with the virtual life object with the shared server 12 based on VSAP (Virtual Society Server Application Protocol). The HDD 13 a of the OA server stores a growth parameter control table for the virtual life object as shown in FIG. 7.
As shown in FIG. 8, the data associated with the virtual life object in the growth parameter control table are largely classified into virtual life data and keeper data.
The virtual life data includes a 3D object ID for uniquely identifying a 3D object in one shared virtual space, three-dimensional coordinate values representing the virtual life object in the shared virtual space, a type of a creature such as a monkey or a cat selected by the keeper, the gender of the creature, its nickname given by the keeper, a date initialized by the keeper, namely the birth date of the virtual life object, a world name (a world name of domicile of origin) given to the virtual space in which the virtual life object was born, and growth parameters of the virtual life object.
The growth parameters are largely classified into physical parameters for specifying the external growth of the virtual life and mental parameters for specifying the internal growth of the avatar reflecting its character.
FIG. 9 shows capabilities of an action panel displayed beside the main window of the VRML browser on the CRT monitor screen of the client PC 1.
In FIG. 9, “A” denotes a calling button represented as “Active.” This button is clicked to call the virtual pet or wake up the sleeping virtual pet.
“B” denotes a button represented as “Sleep” for putting the virtual pet to bed.
“C” denotes a feeding button. This button is clicked to feed the virtual pet.
“D” denotes a praise button. This button is clicked to praise the virtual pet by smiling at it.
“E” denotes of a play button. This button is clicked to play tag, in which the keeper chases the virtual pet until the same is blocked by a wall and cannot be escaped therefrom.
“F” denotes a scold button. This button is clicked to scold the virtual pet for discipline.
“G” denotes a groom button. This button is clicked to groom the virtual pet by brushing.
As shown in FIG. 10 for example, when the call button A is clicked (the action panel is operated) on the own client PC 1 and a resultant call message is sent to the AO server 13 through the shared server 12 (step S1), growth parameter update processing is performed on the growth parameter control table based on that access event (step S3). Based on this access event, the appetite index, the health index, and the mood index are each incremented by 0.1 point from {fraction (1/10)} to {fraction (10/10)}.
If the feeding button C is clicked for example and a resultant message is sent to the AO server 13 (step S2), the weight, one of the growth parameters, increases operation event occurs, along which the physique index is incremented by 0.1 point from {fraction (1/10)} to {fraction (10/10)} (step S3).
For example, the growth parameters including this physique index are transferred (step S4) to the client PC 1 of the original keeper and another client PC 2 sharing the virtual space by multicast processing (step S5) of the shared server 12 every time the growth parameters are updated.
The client PC 1 executes the growth script program described with a processing procedure for controlling the autonomous behavior resulted from the virtual pet growth based on the growth parameters (step S6), changes the field values of the nodes constituting the 3D object for representing the virtual pet in the VRML file (step S7), performs rendering on the virtual pet on which the changed field values are reflected (step S8), and displays the rendered virtual pet on the main window of the VRML browser on the CRT monitor screen of the client PC 1.
The same processing performed by the client PC 1 is also performed on the other client PC 2 sharing the virtual space. Consequently, rendering is performed on the appearance of the virtual pet on which the field value changed along the growth of the virtual pet is reflected, and the rendered virtual pet is also displayed on the main window of the VRML browser on the CRT monitor of the other client PC 2.
FIGS. 11 shows a relationship between part 0 through part 5 corresponding to the nodes constituting a 3D object for representing a virtual pet in the VRML file. FIG. 12 shows an example of displaying these parts. Part 0 corresponds to the head of the virtual pet, part 1 to its body, part 2 and part 3 to its right and left arms, and part 4 and part 5 to its right and left legs.
Changing the field values of the nodes corresponding to these parts 0 through 5 can dynamically change the external view (shape, attitude (orientation), size, color, and so on) and the behavioral sequence of each part of the virtual pet. These are all realized by the processing of the growth script program based on the growth parameters. Namely, these are realized by use of the mechanism of Behavior to be realized by the cooperative operation between the sensor, the routing, and the script defined in VRML 2.0.
Therefore, unlike the conventional method of displaying images of a virtual creature of portable electronic pet, it is unnecessary to store the bit-map images representing each growth process of the character of virtual creature in the ROM beforehand. Namely, use of the mechanism of Behavior can continuously and dynamically change the physique and behavior of a virtual pet according to its growth process for example.
FIG. 13 is a conceptual diagram in which the physique of a virtual pet is dynamically changed as the virtual pet grows and its physique index changes. As the virtual pet grows in age, its face becomes that of an adult and its physique becomes larger. If the physique index is small, the avatar becomes thin; if it is large, the avatar becomes thick.
FIG. 14 is a conceptual diagram in which the countenance of the virtual pet is dynamically changed as its mood index changes. When the mood index is high, the face of the virtual pet smiles; when it is low, an angry expression appears on the face.
FIG. 15 is a conceptual diagram in which the behavioral sequence of each part of the virtual pet is dynamically changed as the activity index of the virtual pet changes. When the activity index is low, only a small movement such as bending of knees; when it high, the virtual pet can wave its arms or shake its head for example.
FIG. 16 is a conceptual diagram in which hair is added to the virtual pet or glasses are put on it as the intelligence quotient of the virtual pet changes.
The intelligence quotient, one of the growth parameters, is incremented by 0.1 point based on the access event caused by the operation of the calling button A shown in FIG. 9, thereby changing the appearance of the virtual pet as shown in FIG. 16.
The language index is incremented by 0.1 point according to the age of the virtual pet based on the access event caused by the operation of the call button A shown in FIG. 9 or the timer event, thereby changing the style of text in chat sentence editing processing. For example, chat of a virtual pet having a small point is performed using hiragana or katakana Japanese syllabary and a chat of a virtual pet having a large point is performed using text including kanji Chinese characters.
The sociability index is incremented or decremented by 0.1 point according to the frequency of chat with the keeper. If the frequency is high, sociability increases; if it is low, sociability decreases. A virtual pet having a sociable and positive character takes on good attitude and countenance. Conversely, a virtual pet having an introvert and negative character takes on poor attitude and countenance.
The independence index is incremented by 0.1 point as a virtual pet ages based on timer event, gradually becoming independent of the keeper, rejecting commands of the keeper for example.
The activity index is determined based on the age, appetite index, and health index, affecting the behavior of a virtual pet as shown in FIG. 15. Also, the activity index is incremented by 0.1 point based on the event caused by operating the play button E shown in FIG. 9, affecting the behavior of the virtual pet such as gradually quickening getaway. The weight of the virtual pet is decreased to decrement its physique index, dynamically changing its appearance as shown in FIG. 13.
The mood index is determined by the access event caused by operating the call button A shown in FIG. 9 and the access frequency based on timer event, thereby affecting the countenance of a virtual pet as shown in FIG. 14.
The keeper data as described above is controlled to realize the capability of contacting the keeper by use of the existing communication infrastructure to be describe later and the capability of simplified operation of a virtual pet by use of the existing communication infrastructure.
The above-mentioned system is summarized as follows. Namely, the growth parameter (indicative of outer growth or inner growth (personality)) of a virtual life object existing in a shared virtual space is controlled by the AO server 13, this growth parameter changing with occurrence of a predetermined event (an event caused by a user operation or passing of predetermined time). Based on the growth parameter transferred from the AO server 13, the script for dynamically changing one or both of the appearance (shape, attitude, size, or color) and the behavioral sequence of the virtual life object is interpreted to display the virtual life object according to the growth parameter on the client PCs 1 and 2.
The AO server 13 for controlling the autonomous behavior of a virtual life object existing in a shared virtual space is provided with a control table for controlling growth parameters for the virtual life object that change with occurrence of a predetermined event (an event caused by a user operation or passing of a predetermined time). A growth parameter read from the control table upon request from a client or occurrence of a predetermined demand is sent to one or both of the requesting client and another client.
As described above, the growth parameter is a value indicative of the degree of external growth to be calculated based on the occurrence of a predetermined event (an event caused by a user operation or passing of a predetermined time) from the birth of a virtual life object. Therefore, the outer growth parameter defines the outer change of a virtual life creature or a virtual pet (AO) according to the age from baby to grown-up to aged.
The growth parameter is also a value indicative of the degree of inner growth (character) to be calculated based the occurrence of a predetermined event (a user operation or passing of a predetermined time) for a virtual life object. For example, a virtual life object having a sociable and positive character takes on good attitude and countenance. Conversely, a virtual life object having a dark and negative character takes on bad attitude and countenance. Thus, the change in the character of a virtual life creature or a virtual pet (AO) is specified by the inner growth parameter.
For the inner growth parameter, a different value is calculated according to the type of an event for a virtual life object, updating the degree of the inner growth. If the character of a virtual pet for example is controlled by the AO server 13, 0.1 point is added to a predetermined index of the growth parameter according to the type of a message sent from each client; for example, every time the virtual pet is talked to in chat. Every time the virtual pet is praised by pressing of the praise button D, 0.2 point is added. Every time the virtual pet is scolded by pressing of the scold button F, 0.2 point is subtracted from the predetermined index. Thus, the calculation is performed based on predetermined arithmetic equations.
The AO server 13 for controlling the autonomous behavior of a virtual life object in a shared virtual space is provided with a growth parameter control table indicative of the degree of growth of each virtual life object. This control table holds the birth date of each virtual life object. Based on the elapsed time starting from this birth date, the growth parameter according to the age of each virtual life object is calculated. The control table is updated by the newly calculated growth parameter.
The autonomous behaviors of plural virtual life objects in a shared virtual space are independently controlled by the AO server 13 (the single AO server 13 may control plural growth parameter control tables or the AO server 13 and the AO server 14 may control the plural control tables separately). Thus, the growth parameter control tables indicative of the growth degrees of different virtual life objects may be provided separately to control the growth parameters of the different virtual life objects independently.
For example, the AO server 13 for controlling the autonomous behavior of a virtual life object in a shared virtual space may be provided with a control table for controlling the ID (a nickname for example of the virtual life object set by user) of a client who accessed the virtual life object (the control items of this control table may be included in the growth parameter control table or this control table may be provided independently). Based on this control table, an event indicative of an intimacy emotional expression may be started according to the access by the client having this ID. Thus, holding the degree of intimacy (access count and contents) on the AO server 13 can realize a pet (virtual life) object that approaches its keeper when the keeper has entered the world (the shared virtual space).
The ID of a client who has set or reset a virtual life object may be stored in the growth parameter control table as the keeper of this virtual life object. Updating of this ID is disabled until the life of the virtual life object expires. At the time of the expiration, this ID may be deleted. This can realize a virtual pet that is loyal to its keeper who gave birth to it (namely set it in the shared virtual space). Further, when the life of a virtual life object expires (namely, it is reset), a child of this virtual life object may be automatically generated and the ID of the keeper of its parent may be set to this child. This makes the child pet be also loyal to the keeper of its ancestor.
The AO server 13 may be provided with a history control table for controlling the history of a client who has set or reset a virtual life object. The client higher in access frequency than other clients can start a behavioral sequence indicative of more intimate emotional expression. As the access frequency lowers, the degree of intimacy lowers, thereby realizing a whimsical pet of which degree of intimacy changes with access frequency.
If the movement of a virtual life object is controlled according to the position of client in a shared virtual space, the virtual life object immediately appears just in front of the client (keeper) when the client enters the shared virtual space, thereby realizing the virtual life object that always follows its keeper about.
An event in a shared virtual space (for example, an experience of being fed by another client) may be reported by the virtual life object to the client through a text-based chat window, thereby realizing an intimacy emotional expression.
Experience of an event in a shared virtual space may be reported from the virtual life object to the client through a voice chat to provide an intimacy emotional expression. Alternatively, this report may be made through a voice chat capability as an analog voice message based on text-to-voice conversion supported by text reading software. As another alternative, several types of voice messages may be sampled and compressed to be stored as digital voice compressed data in the hard disk (of the AO server 13 or the client PC 1). Then, an optimum voice message is selectively read from the hard disk, decompressed, and reported to the client as an analog voice message through the voice chat capability. For the conversion between text and voice, the technology disclosed in Japanese Published Examined Patent Application No. HEI 7-1058488 (JP 7105848B4) is available.
The following describes the capability of notification to the client based on an existing communication infrastructure and the capability of simplifying the operation of a virtual pet based on an existing communication infrastructure.
For example, if the appetite index of a virtual life object increases or its remaining life time goes below a predetermined value, the virtual life object (the AO server 13) notifies, through the mail server 15 or the communication server 16, its keeper at the keeper's address of contact of this change by use of the contacting means (FIG. 8) previously set to the growth parameter control table. If the keeper cannot immediately access the personal computer under situations that the keeper is away from the personal computer or the personal computer itself is malfunctioning for example, the keeper can later check requests of the virtual pet and make communication with it.
On the other hand, a service provider for providing services for virtual pet breeding such as described so far can evoke a motivation of a kind that the user must soon access the virtual pet. This provides a result that the service provider can ensure regular access, contributing to its stable management.
The communication server 16, one of the servers for controlling the autonomous behavior of a virtual life object in a shared virtual space, is provided with a communication control table (a table corresponding to the keeper data in the growth parameter control table shown in FIG. 8) for controlling the type of a message notification means (or a message notification method) for making notification to the user, or the keeper of each virtual life object and controlling the address of contact of the keeper. As the state of the virtual life object changes (the communication server 16 is notified of this change by the AO server 13), the message is sent to the address of contact by use of the communication means registered in the communication control table. This allows actual communication from the shared virtual world to the real world.
The ID for identifying each user, or the keeper of each virtual life object and the history access by the user having this ID are controlled by this communication control table. Based on the access history, a message “I miss you” for example may be sent to a user who has not accessed his or her virtual life object for over a certain period.
Further, based on the access history, an optimum message statement may be selected from among plural message statements. The day after the day on which access was made by the user, a message “Thank you for playing with me. Let's play again” for example may be sent from the virtual life object to its keeper. If no access has been made for over one week for example, a message “Are you busy these days? Please come to play with me sometimes” for example is sent.
A transition in the state of a virtual life object is sensed based on the updated content of the growth parameter control table, an optimum message statement is selected from among plural message statements, and the selected message is sent. For example, the day after the day on which the virtual life object was fed much, a message “I'm still full” for example is sent. If no access has been made for one week for example, a message “I'm starving to death” for example is sent. In a scenario in which a virtual life object is aged one year in one week, its birthday comes every week and a message “I have become 10 years old today. Please look at grown-up me” for example is sent. If the allocated remaining life time is nearly expiring, a message “I have to go somewhere far away soon. Please be with me when I die” for example is sent.
The mail server 15 may be provided with a part of the communication control table associated with electronic mail to send a text-based message to the keeper of each virtual life object at his or her electronic mail address (including his or her ID) by the communication control table of the mail server 15.
Alternatively, the telephone number (including the ID) of the user of each virtual life object may be controlled by the communication control table to automatically call the user at his or her registered telephone number from the communication server 16, thereby sending a voice message. In this case, this notification may be made as an analog voice message based on text-to-voice conversion supported by text reading software through the ordinary telephone 8 or a mobile telephone (the PHS terminal 23). Alternatively, several types of voice messages may be sampled and compressed to be stored as digital voice compressed data in the hard disk (of the AO server 13 or the client PC 1). Then, an optimum voice message is selectively read from the hard disk, decompressed, and reported to the client as an analog voice message.
The facsimile number (including the ID) of the user of each virtual life object may be controlled by the communication control table to automatically call the user at this facsimile number, thereby sending a message to the facsimile 19.
Further, by use of a terminal such as the telephone 18 that has received the above-mentioned message from the virtual pet, two-way communication may be made between the keeper and its virtual pet from this terminal by a simplified operation.
The following describes a particular example of realizing the capability of performing a simplified operation on a virtual pet by use of an existing communication infrastructure.
For example, the shared server 12 can interpret an operation command returned with the ID (caller ID) of the user through the PHS terminal 23 or the telephone 18, recognize the operation command as a message to the corresponding virtual life object, send the message to the AO server 13, and reflect the content of the message onto the state transition (updating of a growth parameter) of the virtual life object.
In addition, by use of Web-On-Call (registered trademark) voice browser by NetPhonic Communications Inc. (http://www.netphonic.com/) for example, various notifications to a virtual pet may be made. This voice browser allows access to servers from the ordinary telephone 18 by voice. This voice browser has a text reading capability, so that a mail from a virtual pet can be heard in voice. Moreover, this voice browser can also send text by facsimile or electronic mail.
In personal chat, conversation is made only with a specified party. This specification is performed by clicking the mouse button on a desired virtual life object while pressing the shift key of the keyboard 42 for example. When the other party of chat is specified, chat made by the client who made that specification is directed only to the specified party.
In voice chat, contents of chat are transmitted in a voice signal; in text chat, they are transmitted in text. In voice chat, voice data captured by the microphone 36 is transmitted to the clients (users) nearby or specified virtual life objects to be sounded from the speakers 37 and 38 of the PCs of these clients.
In text chat, text entered by from the keyboard 42 is transmitted also to the clients (users) of nearby or specified virtual life objects to be displayed on the CRT monitor 45 of the client PCs.
The following describes particular examples of display on the CRT monitor on a client PC. FIG. 17 shows an example to be displayed on the CRT monitor 45 when access is made from the client PC 1 to the shared server 12 for example. In this display example, a message “Connected to Community Place Bureau” is superimposed on the image in a three-dimensional shared virtual space. It should be noted that, on the right side of this screen, an area “Chat Log:” in which chat contents are displayed and various action buttons are arranged.
To select a virtual pet to be bred in the shared virtual space, the user clicks “Multi user” item in the screen. When this item is clicked, a menu bar appears as shown in FIG. 18. From the menu bar, the user selects “Select Pet.” Then, “View Pet” window appears as shown in FIG. 19, in which various pet images are displayed. The user selects a desired one of these pets. It should be noted that the images of pets displayed in the “View Pet” window are the initial images, namely the images at their births. As described earlier, the image of each pet gradually changes as it grows. When the user has determined the pet to be bred, the user presses the “SELECT” button with the mouse 41.
When the selection of the pet has been completed, a window “Registration” for registering the information about the selected pet appears as shown in FIG. 20. The user enters the name of the pet “Pet Nickname,” the name of the owner (keeper of the pet) “Owner Name,” and the address and telephone number “Address/Telephone No.” of the owner from the keyboard 42.
Further, the user selects a communication tool as the above-mentioned contacting means or notification means from “E-mail,” “Telephone,” “PHS-mail,” “Facsimile,” and “Pocket Bell (pager).”
FIG. 21 shows an example in which a monkey for example has been selected as the virtual pet. As described earlier, this virtual pet (monkey) grows based on growth parameters to be updated by various events. FIG. 22 shows a state of the pet in which it has grown from the state shown in FIG. 21. As shown in FIG. 22, the pet is larger in physique and its countenance has changed to that of an adult monkey.
As described above, two or more users share a virtual creature and breed the same while keeping communication with it, thereby affecting the character building of the virtual creature. In addition, dynamically changing the appearance and behavior of a virtual creature as it grows can realize a shared virtual space providing system in which the growth process of a virtual creature closer to that of a real creature can be represented.
It should be noted that the program for executing the above-mentioned processing operations can be provided in a floppy disc, a CD-ROM disc, or another recording medium or through the Internet or the other network.
As described and according to the client apparatus described in claim 1, the display control method described in claim 2, and the program providing medium described in claim 3, a script program for dynamically changing one or both of the external view and the behavioral sequence of a virtual life object based on the growth parameters transferred from this server is interpreted and executed, thereby controlling the display of the virtual life object according to the growth parameters. According to the shared virtual space providing apparatus described in claim 7, the shared virtual space providing method described in claim 8, and the program providing medium described in claim 9, the growth parameters are controlled and, at the same time, a growth parameter is read upon request from a client apparatus or occurrence of a predetermined event and this parameter is sent to one or both of the requesting client apparatus and another client apparatus. Consequently, plural users can breed a virtual creature and form its character while making communication with the same. Further, the above-mentioned novel constitution can dynamically change the external view and the behavior of the virtual creature as the same grows, thereby realizing a growth process closer to that of a real creature.
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