05594509 is referenced by 688 patents and cites 72 patents.

An interactive audio-visual (A/V) transceiver is advantageously coupled to a television and/or telephone (T/T) cable, a TV, a video recorder (VCR), and other A/V devices. The A/V transceiver switches data between a program/service provider and the connected A/V devices. In one embodiment, the transceiver includes three primary modules, a main module including a CPU, a system bus, system memory, an infra-red (IR) control unit, an audio-visual bus, an A/V decoder, an A/V processor, and an A/V encoder, an A/V connect module including a number of tuner/demodulators and a switch, and an optional CD ROM module. The A/V transceiver hardware is complemented with an operating system and software program which supports the functions provided in the A/V user interface. Additionally, a remote control device is provided to communicate with the A/V transceiver to interactively manage selection of program and service sources, selection program and service offerings from any selected source, viewing of selected program offerings, and interaction with selected service offerings. The remote control device is advantageously provided with a basic A/V control button group, an interactive control button group, an auxiliary control button group and a numeric key pad to facilitate control of the transceiver. The interactive control button group includes an info button, a list button, a categories button, a pix button, a mark button, a jump button, and a pointing device consisting of up, down, left, and right arrow buttons, and a center select button.

Title
Method and apparatus for audio-visual interface for the display of multiple levels of information on a display
Application Number
8/81931
Publication Number
5594509
Application Date
June 22, 1993
Publication Date
January 14, 1997
Inventor
Nick West
San Francisco
CA, US
Stuart Sharpe
San Francisco
CA, US
Bill Purdy
San Anselmo
CA, US
Peter Miller
Los Altos Hills
CA, US
Peter Maresca
Palo Alto
CA, US
Janey Fritsche
Mill Valley
CA, US
Glenn Corey
San Rafael
CA, US
Michael Buettner
Burlingame
CA, US
Fabrice Florin
Mill Valley
CA, US
Agent
Blakely Sokoloff Taylor & Zafman
Assignee
Apple Computer
CA, US
IPC
H04N 7/16
View Original Source