04751578 is referenced by 704 patents and cites 35 patents.

The electronically controllable system of the invention for viewing on a television, updateable television programming information comprises a microcontroller which is partially controllable by remote control system and is updateable via telephone link, magnetic cards or floppy disks, or television or radio subcarrier, the microcontroller including input/output interfaces, a microprocessor and a RAM; a mixer for mixing a regularly received television signal with the signal generated by the microcontroller; an RF converter for receiving the radio frequency information from the mixer, microcontroller, and television antennae and properly converting the information into information which may be sent to the television; and a remote control system for permitting the viewer to direct the microcontroller to perform searches on information contained in the RAM so as to provide on the television screen in a chosen format, subsets of information desired by the viewer. The system preferably also includes a ROM for directing the microcontroller to access the information link should the RAM lose information due to power failure.

Title
System for electronically controllably viewing on a television updateable television programming information
Application Number
6/738283
Publication Number
4751578
Application Date
May 28, 1985
Publication Date
June 14, 1988
Inventor
Frank Shannon
Lindenhurst
NY, US
Michael H Zemering
Plainview
NY, US
Eli Reiter
Dix Hills
NY, US
Agent
David P Gordon
Assignee
David P Gordon
CT, US
IPC
H04N 5/265
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