Video distribution system allowing viewer access to time staggered indentical prerecorded programs

• US 5,168,353 A
• Filed: 12/21/1990
• Issued: 12/01/1992
• Est. Priority Date: 12/21/1990
• Status: Expired due to Term

• Current Assignee: Verizon Laboratories Incorporated (Verizon Communications Inc.)
• Original Assignee: GTE Laboratories Incorporated (Lumen Technologies, Inc.)
• Inventors: Walker, Stephen S., Ullrich, Kathryn E.
• Primary Examiner(s): Groody, James J.
• Assistant Examiner(s): Powell, Mark R.
• Application Number:
  US07/633,593
• Time in Patent Office: 711 Days
• Field of Search: 358/86, 358/181, 455/3, 455/4, 455/5, 380/20, 380/23, 380/5, 380/10
• US Class Current: 725/103
• CPC Class Codes: H04N 21/4722 for requesting additional data associated with the content
• CPC Class Codes: H04N 21/812 involving advertisement data advertising per se G06Q30/02
• CPC Class Codes: H04N 7/16 Analogue secrecy systems; Analogue subscription systems

Abstract

System for distributing video programs includes a transmission system having a plurality of channels, includes a stored database representing a predetermined schedule including timing instructions. A computer is programmed to provide real time outputs in response to the database time instructions. A bus has an input coupled to the computer and providing control signals in response to the real time outputs. A recorded media contains programs in television format. A plurality of video players are used for playing the recorded media, each video player having a control port coupled to the bus and responsive to the control signals. Each video player has an output providing television signals for coupling to a separate corresponding channel, and at least two of the video players loaded with duplicate recorded media and controlled to play at staggered overlapping time intervals. A character generator is coupled to the computer for providing to a channel a menu in television format representing a programming schedule. Scrambling means are interposed between the output of a video player and the corresponding channel for scrambling the television signal. Access means provides downstream access to a channel and unscrambles a television signal on an accessed channel. The access means provides access to the first and second channels thereby allowing return to the same point of a program after a pause equal to the staggered time interval.

Claims

1. A system for distributing video programs over a plurality of channels comprising:

a transmission system having a plurality of channels;

a stored database storing a predetermined schedule including timing instructions;

a computer programmed to provide real time outputs in response to said database time instructions;

a bus having an input coupled to said computer and conveying control signals in response to said real time outputs;

recorded media containing programs in television format;

a plurality of video players for playing said recorded media, each video player having a control port coupled to said bus and responsive to said control signals, each video player having an output providing television signals coupled to a separate corresponding channel, at least two of said video players loaded with duplicate recorded media and controlled to play at staggered overlapping time intervals on first and second channels; and

access means for providing downstream access to a channel, wherein said access means provides access to said first and second channels thereby allowing return to the same point of a program after a pause equal to said staggered time interval.

2. The system of claim 1 further comprising a character generator coupled to said computer and having an output coupled to a channel for providing a menu in television format representing a programming schedule.

3. The system of claim 2 further comprising at least one promotional video player for playing promotional programming, said promotional video player having an output coupled to a promotional channel.

4. The system of claim 3 further comprising a character generator coupled to said computer and having an output coupled to a channel for providing a menu in television format representing a programming schedule and coupled into the input of the promotional video player, arranged so that if said one or more promotional video players are in a non-play condition, then the character generator output is automatically connected into the promotional channel.

5. The system of claim 1 further comprising scrambling means interposed between an output of a video player and said corresponding channel for scrambling said television signal, and wherein said access means unscrambles a television signal on an accessed channel in accordance with an enabling signal.