Source: https://patents.google.com/patent/US7911989?oq=6650327
Timestamp: 2018-04-23 13:12:09
Document Index: 469257970

Matched Legal Cases: ['art 11', 'art 11', 'art 11', 'art 11', 'art 11', 'art 11']

US7911989B2 - Information processing system, information processing unit, control method, program and a recording medium - Google Patents
Information processing system, information processing unit, control method, program and a recording medium Download PDF
US7911989B2
US7911989B2 US12201572 US20157208A US7911989B2 US 7911989 B2 US7911989 B2 US 7911989B2 US 12201572 US12201572 US 12201572 US 20157208 A US20157208 A US 20157208A US 7911989 B2 US7911989 B2 US 7911989B2
US12201572
US20090002759A1 (en )
Kozo Matusnaga
An information processing system includes a plurality of information processing units wirelessly communicating with each other, each of which includes a distribution data receiving section for receiving distribution data to be distributed to each of the information processing units from an information processing unit that has received the distribution data among the plurality of information processing units, a destination selection section for selecting an information processing unit that has not received the distribution data as a destination information processing unit for the distribution data from among the plurality of information processing units, and a distribution data sending section for sending the distribution data to the information processing unit selected by the destination selection section using a frequency band that is not used by another information processing unit while the other information processing unit is sending the distribution data to still another information processing unit.
This patent application is a continuing application of U.S. application Ser. No. 11/190,305, filed Jul. 26, 2005 now U.S. Pat. No. 7,453,859, which claims priority to Japanese Patent Application Number 2004-217604 filed on Jul. 26, 2004, the disclosure of which is incorporated by reference in its entirety.
The present invention relates to an information processing system, information processing unit, control method, program and recording medium. In particular, the present invention relates to an information processing system, information processing unit, control method, program and recording medium for configuring a wireless communication network.
Recently, as higher performance and more price reduction of computers are increasingly realized, “IT” is rapidly progressed in various fields. For example, in the field of education, it is increasingly common that each student is provided with his/her own personal computer for use during lectures and practices. In order to give such lectures appropriately, it is necessary to appropriately set up software for a lot of personal computers for each lecture.
FIG. 14 is a conceptual diagram showing that a disk image is distributed via a wired network. A server device 80 communicates with a layer 2 switching hub via the Gigabit Ethernet®, for example. The layer 2 switching hub communicates with each of personal computers 85-1 to 85-30 via the 100 Base-T Ethernet®. In this case, if the data size of the disk image is assumed to be 5 Gbytes, distribution of the disk image is completed in about one hour. Thus, with the progress of recent communication technology, the communication speed of wired connection has been increased, and in most cases, there is caused no problem in the communication speed in distributing a disk image.
FIG. 1 shows a configuration of an information processing system 10. FIG. 2 shows transmission routes along which distribution data is sent in the information processing system 10. The information processing system 10 is provided indoors, for example, in a lecture room and comprises an information processing unit 20 and information processing units 30-1 to 30-30 which wirelessly communicate with each other. The information processing unit 20 is provided, for example, on a lecture administrator's desk. The information processing unit 20 is a predetermined information processing unit serving as a source of distribution for distribution data to be distributed to the information processing units 30-1 to 30-30, and stores the distribution data in advance. For example, the information processing unit 20 may read the distribution data from a CD-ROM or the like and store it, in response to a user operation. The information processing unit 20 establishes one-to-one connection sequentially with each of the information processing units 30-1 and 30-22 in the wireless LAN ad hoc mode. Thereby, the information processing unit 20 sends the distribution data sequentially to each of the information processing units 30-1 and 30-22.
US12201572 2004-07-26 2008-08-29 Information processing system, information processing unit, control method, program and a recording medium Expired - Fee Related US7911989B2 (en)
JP2004217604A JP4107594B2 (en) 2004-07-26 2004-07-26 The information processing system, information processing apparatus, control method, program, and recording medium
JP2004-217604 2004-07-26
US11190305 US7453859B2 (en) 2004-07-26 2005-07-26 Information processing system, information processing unit, control method, program and a recording medium
US12201572 US7911989B2 (en) 2004-07-26 2008-08-29 Information processing system, information processing unit, control method, program and a recording medium
US20090002759A1 true US20090002759A1 (en) 2009-01-01
US7911989B2 true US7911989B2 (en) 2011-03-22
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US11190305 Expired - Fee Related US7453859B2 (en) 2004-07-26 2005-07-26 Information processing system, information processing unit, control method, program and a recording medium
US12201572 Expired - Fee Related US7911989B2 (en) 2004-07-26 2008-08-29 Information processing system, information processing unit, control method, program and a recording medium
US (2) US7453859B2 (en)
JP (1) JP4107594B2 (en)
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