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Data transmission device, data transmission method, game device, and game systemRelated Patent Categories: Amusement Devices: Games, Including Means For Processing Electronic Data (e.g., Computer/video Game, Etc.), Data Storage Or Retrieval (e.g., Memory, Video Tape, Etc.)Data transmission device, data transmission method, game device, and game system description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060084507, Data transmission device, data transmission method, game device, and game system. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS-REFERENCE TO RELATED APPLICATION [0001] This application is a continuation of International application PCT/JP04/005368 filed on Apr. 15, 2004, pending at the time of filing of this continuation application and claims priority from Japanese Patent Applications 2003-112218 filed on Apr. 16, 2003, the contents of which are herein wholly incorporated by reference. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to communications technologies, and more particularly to a technology for implementing communications between a plurality of terminals over a network. [0004] 2. Description of the Related Art [0005] In performing communications between terminals over a network, it is necessary to define a protocol which specifies rules for the communications. The protocol for establishing network connections include a connectionless protocol such as UDP (User Datagram Protocol) which requires neither establishment nor release of a transmission path before and after transmission and a connection oriented protocol such as TCP (Transmission Control Protocol) which requires establishment and release of a transmission path before and after transmission. [0006] In the Internet, UDP and TCP are set as the protocols of the fourth layer (transport layer) In performing communications over the Internet, either the UDP or TCP protocol, which is preset as the communication protocol in the transport layer, is followed for data transmission. Once set, the protocol is intended not to be changed but to accommodate variations in the propagation environment, if any, by reducing the transmission rate. [0007] The aforementioned communication protocols are concerned with the Internet representative of WAN (Wide Area Network). Likewise, for LAN (Local Area Network), one communication protocol is preset, which is followed for data transmission. SUMMARY OF THE INVENTION [0008] It is an object of the present invention to provide a communications technology which employs an inventive method of setting a communication protocol. To this end, the communications technology according to the present invention enables setting of a protocol to be used as circumstances demand. [0009] One aspect of the present invention relates to a data transmission device for transmitting data to a receiving terminal over a network. This data transmission device enables setting of a protocol to be used from among a plurality of data transmission protocols. The data transmission device may set a protocol based on preset instruction information associated with the data to be transmitted. When the data is image data, the instruction information may be protocol setting information preset for the image data or protocol setting in formation preset for a scene made up of the image data. The protocol setting information may take the form of a flag designating a protocol or information for identifying the title or genre of the image data. The protocol may also be act based on an instruction from the user. [0010] Alternatively, the protocol may also be set based on the transmission error rate of the data received by the receiving terminal. [0011] Another aspect of the present invention relates to a data transmission method for transmitting data to a receiving terminal over a network. This data transmission method enables setting of a protocol to be used from among a plurality of data transmission protocols. [0012] Still another aspect of the present invention relates to a game device for transmitting AV data of a game over a network to a receiving terminal having a display and a speaker. The game device enables setting of a protocol to be used from among a plurality of data transmission protocols. The game device may employ UDP for transmitting AV data of a game or AV data of a scene of a game requiring a low delay, whereas employing TCF for transmitting AV data of a game or AV data of a scene of a game not requiring a low delay. [0013] Still another aspect of the present invention relates to a game system which includes a receiving terminal having a display and a speaker, a game device for transmitting AV data of a game to the receiving terminal over a network, and a game device controller controlled by a user. In this game system, the game device enables setting of a protocol for transmitting the AV data to the receiving terminal based on preset protocol setting information associated with the AV data or a transmission error rate. The game device may also enable changing of the protocol according to an entry on the controller. [0014] Still another aspect of the present invention provides a program which allows a computer to execute a function for enabling setting of a protocol for data transmission over a network from among a plurality of protocols. [0015] Still another aspect of the present invention provides a computer readable recording medium on which stored is a program that allows a computer to execute a function for enabling setting of a protocol for data transmission over a network from among a plurality of protocols. [0016] Incidentally, any combinations of the foregoing components, and any conversions of expressions of the present invention from/into methods, apparatuses, systems, recording media, computer programs, and the like are also intended to constitute applicable aspects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS [0017] FIG. 1 is a view showing an overall configuration of a game system according to an embodiment of the present invention; [0018] FIG. 2 is a view showing a TCP header format; [0019] FIG. 3 is a view showing a TCP/IP communications model; [0020] FIG. 4 is a view showing a UDP header format; Continue reading about Data transmission device, data transmission method, game device, and game system... Full patent description for Data transmission device, data transmission method, game device, and game system Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Data transmission device, data transmission method, game device, and game system patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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