EP0194143A2
Expired / Lapsed
EP
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Videotex system
Assignee: Sony Corp
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Filing: 1986-03-05
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Granted: —
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Expires: 2006-03-05
Abstract
Abstract 57 A videotex system in which a data base center and a user terminal apparatus are connected through a network line so that a data request from the user terminal apparatus is transmitted through the network to the data base center, while data in answer to the request is returned to the user terminal apparatus from the center through the network, and further wherein a code signal for specifying a control function of the user terminal apparatus, or a peripheral apparatus connected to said user terminal apparatus, is transmitted and received between the center and the user terminal apparatus, whereby on the basis of said transmission and reception, said center carries out the conucol specified by the code for a corresponding user terminal apparatus or peripheral apparatus.
Inventors
- 👤 Yutaka C/O Sony Corporation Nakagawa
- 👤 Ryoichi C/O Sony Corporation Suga
- 👤 Tomikazu C/O Sony Corporation Ishikawa
- 👤 Hiroya C/O Sony Corporation Mochida
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 21:18
CPC Classifications
H; H04; H04M; H04M11/00; H04M11/08; H04M11/085
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
165 words
An information accessing user terminal (2) for communicating with a remote information data center (I), the user terminal (2) comprising a plurality of operative devices (41 to 4N, 3), including a display means (3), which are responsive to mode control signals; input/output interface means (60a) for operatively connecting the terminal to the information data center and for communicating command and data signals between the terminal and the information data center and processor means (50) connected to the input/ output interface means (60a) and the operative devices (41 to 4N,3) for controlling the operations of selected ones of the operative devices (41 to 4N,3) in response to command signals received through a keyboard (41) characterized in that the processor means (50) is capable of receiving command signals from the information data center (1), interpreting them and sending a corresponding selected mode control signal to a selected one of said operative devices whereby the information data center (1) can selectively control said operative devices (41 to 4N,3).
Claim 2
Dependent Claim
165 words
An information accessing user terminal (2) for communicating with a remote information data center (I), the user terminal (2) comprising a plurality of operative devices (41 to 4N, 3), including a display means (3), which are responsive to mode control signals; input/output interface means (60a) for operatively connecting the terminal to the information data center and for communicating command and data signals between the terminal and the information data center and processor means (50) connected to the input/ output interface means (60a) and the operative devices (41 to 4N,3) for controlling the operations of selected ones of the operative devices (41 to 4N,3) in response to command signals received through a keyboard (41) characterized in that the processor means (50) is capable of receiving command signals from the information data center (1), interpreting them and sending a corresponding selected mode control signal to a selected one of said operative devices whereby the information data center (1) can selectively control said operative devices (41 to 4N,3).
Claim 3
Dependent Claim
32 words
An information accessing user terminal (2) according to claim 1, characterized in that said command signals include an originating device code (SRCD), a destination device code (DSTD) and control data code (DCl)r
Claim 4
Dependent Claim
48 words
An information accessing user terminal (2. according to claim 1 or 2, characterized in that said terminal (2) includes an RS-232C type interface (120) and said control data code are supplied to any auxiliary device (45-4N) connected by way of the RS-232C interface (120) to the terminal (2).
Claim 5
Dependent Claim
43 words
An information accessing user terminal (2) according to claim 1, 2 or 3, characterized in that said terminal processor means (50) generates said command signals and transmits them to the information data center (1) upon a command entered at the user terminal (2).
Claim 6
Dependent Claim
45 words
An information accessing user terminal (2) according to claim 1, 2 or 3 characterized in that the terminal processor means (50) generates said command signals and transmits them to the information data center (1) upon receiving a command signal from the information data center (1).
Claim 7
Dependent Claim
140 words
A videotex system having an information data center (1) which includes a programmed computer, and a remote user terminal (2) connected to the data center (1) for accessing information from the data center (1), characterized in that there are provided a plurality of operative devices (41-4N,3), including a visual data display device (3), a keyboard (41) for entering command data, and external devices (43-4N), including data storage means (43,44), all at the user terminal (2), input/output means (60a) for communicatively connecting the terminal and the data center together, programmed terminal processor means (50) connected to the input/output means (60a) and to the operative devices (41-4N,3) for controlling the operations of the operative devices (41-4N,3) in response to preprogrammed instructions and command signals received from the data center (1) via the input/output means (60a) or command signals entered by the user.
Claim 8
Dependent Claim
140 words
A videotex system having an information data center (1) which includes a programmed computer, and a remote user terminal (2) connected to the data center (1) for accessing information from the data center (1), characterized in that there are provided a plurality of operative devices (41-4N,3), including a visual data display device (3), a keyboard (41) for entering command data, and external devices (43-4N), including data storage means (43,44), all at the user terminal (2), input/output means (60a) for communicatively connecting the terminal and the data center together, programmed terminal processor means (50) connected to the input/output means (60a) and to the operative devices (41-4N,3) for controlling the operations of the operative devices (41-4N,3) in response to preprogrammed instructions and command signals received from the data center (1) via the input/output means (60a) or command signals entered by the user.
Claim 9
Dependent Claim
103 words
A videotex system according to claim 6 characterized in that the data center (1) and the terminal (2) exchange coded digital signals which have a format sequence beginning with one or more bytes containing a starting code (OLE, STX), a code (DCl) indicating whether an external operative device is to be controlled, a code (DSTO) indicating the particular device to be controlled, a code (SRCD) indicating the device from which the signal is sent, a plurality of bytes (TEXT) of a text message which can include command instructions to the device, and lastly end codes (DLE, ETX) indicating the end of the sequence.
Claim 10
Dependent Claim
125 words
A videotex system according to claim 6 or 7 characterized in that one of the user terminal external devices includes visual data storage means (45) for supplying image digital data for forming a visual display on the display device (3) and wherein in operation the data center (1) sends a command signal to the terminal (2) via the input/output means (60a), which signal is interpreted by the terminal processor means (50) and is sent to the designated device (45) to cause it to supply visual data to the terminal visual display device (3), and the data center (1) supplies additional display data to the terminal (2) for simultaneous display on the display means (3) with the image data from the visual data storage means (45).
Claim 11
Dependent Claim
32 words
A videotex system according to claim 6, 7 or 8 wherein the terminal (2) includes internal data storage means (80), for storing data, including program data, for the terminal processor means (50).
Claim 12
Dependent Claim
37 words
A videotex system according to claim 9 wherein the terminal (2), upon receipt of a predetermined command signal from the data center (1), stores data supplied by the center (l) in the internal data storage means (80).
Claim 13
Dependent Claim
21 words
A videotex system according to claim 10 wherein the stored data is program data to control the terminal processor means (50).
Claim 14
Dependent Claim
44 words
A videotex system according to claim 9, 10 or 11 wherein the data center (1) can send a predetermined command signal to the terminal (2) to cause the terminal processor (50) to run a select program stored in the interanl data storase means (80)
Claim 15
Dependent Claim
80 words
A videotex system according to any one of claims 7 to 12 wherein the operative devices include a keyboard (41), a display (3), a timer, a printer (42), a video disc player (45), a video disc timer, a tape recorder (43), a video tape recorder, a television receiver, an audio amplifier, a compact disc player, an audible indicator, and a personal computer, and the hexadecimal codes indicating the device to be controlled and the code sending device are as follows:
References Cited (Backward Citations)
No citation records indexed.
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