Interactive terminal for the access of remote database information
First Claim
1. A telecommunications device for creating an interactive terminal for accessing information from a remote computerized database using a communication exchange, wherein said interactive terminal is coupled to a home television receiver for displaying information retrieved from said computerized database, said television receiver having an input port, and to a telephone coupled to said communication exchange, said telephone having one or more keys for generating selective DTMF output signals, wherein said interactive terminal comprises:
- interface means coupled to said telephone and to said communication exchange for communicating and receiving communication signals including carrier based signals over said communication exchange,said interface means responsive to receiving said selective DTMF output signals generated by said telephone for selectively uncoupling said telephone from said communication exchange and allowing a user to locally manipulate said information contained in said interactive terminal after it is retrieved from said remote database;
modem means coupled to said interface means for retrieving and converting said carrier based signals corresponding to said information from said remote database into digitally encoded data signals, and for converting digitally encoded data signals into carrier based signals for transmission via said communication exchange to said remote database;
control means coupled to said modem means for operating said telecommunications device, said control means responsive to said digitally encoded data signals from said modem means;
said control means further comprising programmable memory means for storing said digitally encoded data signals; and
video signal processing means coupled to said control means for converting said digitally encoded data signals into corresponding video data signals for transmitting to said television receiver said video data signal.
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0 Petitions
Accused Products
Abstract
The invention relates to an inexpensive telecommunications device utilizing existent components located in the home or office, such as a television receiver and a telephone, for creating an interactive display terminal for accessing information stored in remote computer databases. In one embodiment according to the invention, the terminal is configured with the necessary logic components to communicate with a host computer system via telephone lines. Alternatively, the device may be directly connected to an inhouse data retrieval network. The terminal is software controlled at the host database and can be dedicated to a particular host computer database system, or may be utilized with various host systems. A multiple screen memory, which is programmable at the host database, may be utilized for storing multiple television screens of information. Peripheral components, such as a printer or disk drive, may be attached to the terminal. The device, when disconnected from the host database, may be programmed to operate in a stand-alone capacity. A data compression technique is employed to reduce the communication time between the host computer system and the terminal.
350 Citations
18 Claims
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1. A telecommunications device for creating an interactive terminal for accessing information from a remote computerized database using a communication exchange, wherein said interactive terminal is coupled to a home television receiver for displaying information retrieved from said computerized database, said television receiver having an input port, and to a telephone coupled to said communication exchange, said telephone having one or more keys for generating selective DTMF output signals, wherein said interactive terminal comprises:
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interface means coupled to said telephone and to said communication exchange for communicating and receiving communication signals including carrier based signals over said communication exchange, said interface means responsive to receiving said selective DTMF output signals generated by said telephone for selectively uncoupling said telephone from said communication exchange and allowing a user to locally manipulate said information contained in said interactive terminal after it is retrieved from said remote database; modem means coupled to said interface means for retrieving and converting said carrier based signals corresponding to said information from said remote database into digitally encoded data signals, and for converting digitally encoded data signals into carrier based signals for transmission via said communication exchange to said remote database; control means coupled to said modem means for operating said telecommunications device, said control means responsive to said digitally encoded data signals from said modem means; said control means further comprising programmable memory means for storing said digitally encoded data signals; and video signal processing means coupled to said control means for converting said digitally encoded data signals into corresponding video data signals for transmitting to said television receiver said video data signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A telecommunications device for creating an interactive terminal for accessing information from a remote computerized database using a communication exchange, wherein said interactive terminal is coupled to a television receiver for displaying information retrieved from said computerized database, said television receiver having an input port;
- said interactive terminal comprising;
a telephone keypad having a plurality of keys for generating output signals corresponding to said keys when selected; interface means coupled to said telephone keypad and to said communication exchange for communicating and receiving communication signals including carrier based signals over said communication exchange, said interface means responsive to receiving said output signals generated by said keypad means for selectively uncoupling said keypad from said communication exchange and allowing a user to manipulate said information after it is retrieved from said database; modem means coupled to said interface means for retrieving and converting said carrier based signals corresponding to said information from said remote database into digitally encoded data signals, and for converting digitally encoded data signals into carrier based signals for transmission via said communication exchange to said database; control means coupled to said modem means for operating said telecommunications device, said control means having a plurality of peripheral interfaces for supporting input/output devices, said control means responsive to said digitally encoded data signals; programmable memory means coupled to said control means for storing said digitally encoded signals; video signal processing means coupled to said control means for converting said digitally encoded data signals into corresponding video data signals including character generation;
radio frequency modulating means coupled to said video processing means for receiving and modulating said video data signals over a carrier frequency, said radio frequency modulating means having a tuning circuit for tuning said modulating video signal across various frequencies; andswitching means coupled to a broadcast/cable exchange, to said input port of said television receiver and to said radio frequency modulating means, wherein said switching means is controlled by said control means and is responsive to said modulated video signal for transmitting to said television receiver said modulated video signal or broadcast signals received from said broadcast/cable exchange. - View Dependent Claims (13, 14, 15, 16, 17, 18)
- said interactive terminal comprising;
Specification