Abstract:
An auditory user interactive interface to an application program being installed in the computer controlled system. A routine in an object, in an application program being installed in the computer controlled system for providing an auditory user interface to the program in combination with auditory means for offering the user of the computer controlled system the auditory user interface during installation of said application program, and responsive to the selection of the auditory interface provides the auditory user interface during said installation of the application program. The functional object in the application program being installed includes the routine for providing the auditory interface preferably implemented in Text to Speech (TTS) functions together with an implementation for determining whether the computer controlled system receiving the application program includes a TTS engine compatible with the TTS functions in the application program and a routine for installing a TTS engine compatible with the routine when the computer controlled system does not include the TTS engine.

Description:
TECHNICAL FIELD 
     The present invention relates to user-interactive computer systems, normally accessed through interactive displays and particularly to systems and methods that are user friendly and provide computer users with an auditory interface that is easy to use and does not impede the normal display interface system. 
     BACKGROUND OF RELATED ART 
     The past generation has been marked by a technological revolution driven by the convergence of the data processing industry with the consumer electronics industry. This advance has been even further accelerated by the extensive consumer and business involvement in the Internet over the past several years. As a result of these changes, it seems as if virtually all aspects of human endeavor in the industrialized world require human-computer interfaces. These changes have made computer directed activities accessible to a substantial portion of the industrial world&#39;s population, which, up to a few years ago, was computer-illiterate, or, at best, computer indifferent. 
     However, even more significant than these advances in opening new horizons to the general population has been the ability of the computer and the Internet to rescue people with even very severe physical impairments from lives of limited menial or no productivity. With the computer, a person with even slight dexterity or vision may, with sufficient effort, be capable of becoming as fully productive from his desktop as a person with full dexterity or vision. 
     This is possible because the computer may be tailored to the unique abilities of each individual. To this end, the computer industry is continuously seeking new implementations to bring more and more impaired individuals into full productivity in the workforce. 
     With an aging population, there is an increasing need to make computer technology readily accessible to visually impaired users. In the past, it was originally necessary to set up special computer operating systems “for the blind”. In such an environment, it was necessary for the visually impaired to arrange for such a set up and then to order from a limited number of special application programs “for the blind”. Because of the limited marketing potential for such special application programs, software providers have obviously kept the visually impaired users out of the mainstream of application programs. 
     However, as object oriented programming technology developed, it became easier to include in more application programs, an object providing a selectable auditory interface for the visually impaired. Such implementations still had their limitations. For instance, the computer system into which the application program was being installed had to have an auditory engine that was compatible with the routines in the application program object. In addition, the visually impaired user still needed help in the installation of the application program through the provision of a starting auditory interface during installation. Currently, this is being provided by a prerecorded auditory step by step presentation. Using prerecorded auditory presentation limits the flexibility and presentation of options during installation. 
     SUMMARY OF THE PRESENT INVENTION 
     The present invention addresses both the problems of: 1) incompatibility of the auditory interface objects and routines in the application programs being installed with auditory engines in the receiving computer system; and 2) providing an initial dynamic rather than a prerecorded auditory interface for and during the installation of the application program. 
     Accordingly, the present invention is directed to a computer controlled system normally interfaced through a user interactive display, and provides an auditory user interactive interface to an application program being installed in the computer controlled system. The system of the invention comprises a routine, preferably as an object, in an application program being installed in the computer controlled system for providing a dynamic auditory user interface to the program based upon Text to Speech (TTS) protocols in combination with TTS means for offering to the user of the computer controlled system the auditory TTS user interface during installation of said application program, and means responsive to the selection of the TTS interface for installation, for providing the auditory user interface during the installation of the application program. 
     The functional object in the application program being installed includes the routine for providing the auditory interface, preferably implemented in TTS functions, together with means for determining whether the computer controlled system receiving the application program includes a TTS engine compatible with said routine. There are means in the application program responsive to the means for determining whether the computer controlled system includes a TTS engine for installing a TTS engine compatible with the routine when the computer controlled system does not include the TTS engine. Further, there are means in the application program responsive to the means for determining whether the computer controlled system includes a TTS engine for modifying an already installed but not compatible TTS engine to a state compatible with the routine. 
     It is to be noted that all of the above steps are carried out initially and dynamically using TTS on installation of the application program, but before the user is given any interactive prompt so that the auditory user interface is available and on-line for the initial aural user installation prompt that is developed by TTS, e.g. “Do you want a spoken installation routine?”. If the user answers “Yes”, the auditory interface system commences, usually along with the conventional display prompts. If the user answers “No”, the system continues the display interface during installation and takes steps to restore the computer system to its original operating state, as will be hereinafter described. In other words, the routine embodied in the application program will automatically set up a compatible TTS engine and initiate the auditory routine on it at the beginning of installation so that an initial auditory prompt to select auditory TTS installation instruction can be made. If the selection is “No”, then any installed auditory engine or engine modification is uninstalled to revert the computer system to the original state so that installation of the application may be made using the conventional display interface for installation prompts and instructions. 
     As set forth above, the auditory engine used herein uses the conventional TTS techniques involving means for providing textual data representative of a sequence of the normal displayable user interactive dialog panels for the installation and TTS means for translating each of this sequence of dialog panels into each of a corresponding sequence of interactive auditory instructions and prompt panels. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present invention will be better understood and its numerous objects and advantages will become more apparent to those skilled in the art by reference to the following drawings, in conjunction with the accompanying specification, in which: 
         FIG. 1  is a block diagram of a generalized data processing system including a central processing unit that provides the normal computer controlled interactive display system, as well as the auditory installation interface that may be used in practicing the present invention; 
         FIG. 2  is a diagrammatic view illustrative of the four stages in the installation of the application programs of the present invention through the normal display interface contrasted with the interactive auditory interfaces provided by these application programs; 
         FIG. 3  is a flowchart of the steps involved in applying the system of the present invention to provide, during the installation, an auditory user interactive interface to an application program being installed in the computer controlled system; and 
         FIG. 4  is a flowchart of an illustrative running of the steps set up in the program of  FIG. 3 . 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring to  FIG. 1 , a typical data processing system is shown that may function as the computer controlled display terminal used in implementing the system of the present invention of providing, during the installation of an application program, an auditory user interactive interface to an application program being installed in the computer controlled system. A central processing unit (CPU)  10 , such as one of the PC microprocessors or workstations, e.g. RISC System/6000™ series available from International Business Machines Corporation (IBM), or Dell PC microprocessors, is provided and interconnected to various other components by system bus  12 . An operating system  41  runs on CPU  10 , provides control and is used to coordinate the function of the various components of  FIG. 1 . Operating system  41  may be one of the commercially available operating systems, such as IBM&#39;s AIX 6000™ operating system or Microsoft&#39;s WindowsXP™ or Windows2000™, as well as UNIX and other IBM AIX operating systems. Application programs  40 , controlled by the system, are moved into and out of the main memory Random Access Memory (RAM)  14 . These programs include the programs of the present invention for providing, during the installation of an application program, an auditory TTS user interactive interface to the application program being installed in the computer controlled system. The auditory TTS engine, which will be discussed in greater detail hereinafter, is part of the operating system  41  when already present in the computer. However, when there is no auditory engine installed in the computer or the installed engine needs to be modified so as to be compatible with the auditory installation routine in the application program, then either the auditory engine itself or the modifications to the already installed engine will be included in the application program  40 . Read Only Memory (ROM)  16  is connected to CPU  10  via bus  12  and includes the Basic Input/Output System (BIOS) that controls the basic computer functions. RAM  14 , I/O adapter  18  and communications adapter  34  are also interconnected to system bus  12 . I/O adapter  18  may be a Small Computer System Interface (SCSI) adapter that communicates with the disk storage device  20 . Communications adapter  34  interconnects bus  12  with an outside Internet or Web network. I/O devices are also connected to system bus  12  via user interface adapter  22  and display adapter  36 . A conventional keyboard  24  (with the standard I/O device for the visually impaired), and mouse  26  are all interconnected to bus  12  through user interface adapter  22 . It is through such input devices that the user may interactively relate to the programs of this invention. Display adapter  36  includes a frame buffer  39  that is a storage device that holds a representation of each pixel on the display screen  38 . Images may be stored in frame buffer  39  for display on monitor  38  through various components, such as a digital to analog converter (not shown) for CRTs and the like for digital displays, e.g. LCD displays. The sound or audio system providing the interface to users on which the auditory interface may be implemented includes any conventional computer sound card  31  with associated speakers  33 . Conventional sound systems that may be used are described in Chapter 5, pp. 155-186 of the text,  Personal Computer Secrets , published 1999, IDG Books Worldwide, Inc., Foster City, Calif. 
     Now with reference to  FIG. 2 , there is illustrated the installation stages in the present invention. Since TTS implementations are referred to, some background may be appropriate. Broadly, it is a known process of converting digital text to a speech output. TTS is used extensively for audio weather alerts and telephone messages and prompting. TTS uses a speech synthesis application that is used to create a sound version of a computer document. TTS is also used by assistive technology programs for reading of computer display information for the visually impaired person. There are numerous TTS products on the market. 
     In Stage 1, application program  55  is to be installed into computer  50 , which is normally interfaced through interactive display interface  51 . Built into application program  55  is an object  54  that is set up to initially offer to the user, through speech, via an auditory routine, the alternative of continuing the whole installation of the application program via a supplemental auditory sequence of prompts and spoken commands. This object even includes a TTS engine  52  to be installed into computers that may not have any engine for generating auditory functions. The application program may also include functions that may be able to modify an auditory TTS engine already installed in the receiving computer  50  that is incompatible with the installation auditory routine. At this stage, the installation requirements are examined and a determination made as to whether any auditory TTS engine already on the computer  50  meets such requirements. These requirements may include the ability to process several languages. In one embodiment, the requirement may include compatibility with the locale in effect at the time of installation. Thus, the application program installation object requires a TTS engine that can issue instructions in several languages. The application program may have the capability of modifying the existing TTS engine in the computer so that the TTS engine is upgraded to issue instructions in the requisite languages or in the language that corresponds to the locale in effect at the time of installation. 
     Then, in Stage 2, the auditory output is rendered functional using the TTS engine, and there is an initial announcement from speaker  53  alerting and aurally prompting the user to take appropriate input action via the keyboard to initiate auditory instructions  56  in Stage 3, which are translated by the TTS engine directly from the prompts that would appear as dialog panels  57  on screen  51  of computer  50 . Where a user selects to have the auditory instructions  56 , it is probably most convenient to still proceed with the corresponding display instructions and prompts  57 . However, in the case of the user not selecting spoken output, then, once the application program is installed, Stage 4, the installed auditory TTS engine or the TTS engine modifications are uninstalled  58  in Stage 4 to restore the receiving computer system to its original state. 
     Now, with reference to  FIG. 3 , we will describe a process implemented by a program according to the present invention for providing an interactive auditory interface during the installation of an application program. The application program to be installed already includes an installation routine for optionally providing this auditory interface, step  71 . The routine provides for aurally offering to the user the initial choice of this auditory interface, step  72 . There is provided in the application program, an auditory TTS engine on which the standard displayable text instructions are converted into announced speech in case the computer system in the installation has no compatible speech engine, step  73 . Also includable in the application program is a function for modifying a TTS engine previously installed in the receiving computer system so that the TTS engine is compatible with the auditory TTS function being installed, step  74 . Provision is made, step  75 , in the application program for the installation of the speech engine of step  73  or the modification of step  74  in order that the announcements of step  72  may be made. Finally, provision is made for the uninstallation of the speech engine of step  73  or the modification of step  74  in the case that the interactive user rejects auditory installations, step  76 . 
     In one embodiment, a provision is made for the uninstallation of the speech engine of step  73  or the modification of step  74  in the case that the interactive user declines an offer to accept a license agreement offered during the installation of the application program. 
     Now that the basic program has been described and illustrated, there will be described with respect to  FIG. 4 , a simple operation showing how the program could be run. Initially, step  80 , the application program including an optional TTS engine and/or TTS engine modification function is input for installation into a computer system. A determination is made, step  81 , as to whether the computer system already has a compatible auditory TTS engine available to it. There are several ways that such a TTS engine could be available: it may already be installed on the computer system on which the application program is being installed; a compatible TTS engine may be available on another computer system associated with the computer system of the installation so that the TTS engine may be transferred, step  82 ; or the application program may have a function capable of modifying an already installed TTS engine so that it is compatible. If both steps  81  and  82  are “No”, then the TTS engine available in the application program is installed in step  83 . If step  82  is “Yes”, then the compatible TTS engine available from the associated computer system is transferred and installed in step  83 . Then or if step  81  is “Yes”, the initial TTS function in the computer system is functional and there is announced the choice prompt to the user to select the auditory installation procedure if desired, step  84 . Next, if step  85  is “Yes”, the user chooses auditory instructions, then the installation proceeds with added auditory instructions, step  86 . If “No”, the user does not require auditory instructions, and the installation can proceed using the standard interactive displayed instructions, step  93 . 
     As the installation continues, step  87 , the user is given opportunities, decision step  88 , to cancel the installation (e.g. the user is dissatisfied with the contractual conditions offered during the installation and declines to accept the license agreement, or the user cancels the installation for any reason, or the user aborts the installation). If “No”, the user chooses to continue, the installation continues and a determination is periodically made, step  89 , as to whether the installation is completed. If “Yes”, the process is exited, step  90 ; if “No”, the process continues via branch “A” back to step  87 . Now, if in step  88  the user decides “Yes” to cancel the installation or if the user by a “No” decision in step  85  has rejected TTS instructions and has proceeded with conventional display installation, then via branch “B” a final determination is made, step  91 , as to whether any TTS engine has been installed. If “Yes”, the TTS engine is uninstalled, step  92  before exiting. If “No”, the process is directly exited. 
     One skilled in the art should appreciate that the processes controlling the present invention are capable of being distributed in the form of computer readable media of a variety of forms. 
     Although certain preferred embodiments have been shown and described, it will be understood that many changes and modifications may be made therein without departing from the scope and intent of the appended claims.