Near video-on-demand signal receiver having a memory which provides for VCR like functions

• US 5,729,280 A
• Filed: 08/28/1995
• Issued: 03/17/1998
• Est. Priority Date: 08/31/1994
• Status: Expired due to Fees

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Inoue, Hajime, Kanota, Keiji, Shimazu, Akira, Kubota, Yukio, Nagashima, Toshimichi
• Primary Examiner(s): Peng, John K.
• Assistant Examiner(s): Flynn, Nathan J.
• Application Number:
  US08/520,564
• Time in Patent Office: 932 Days
• Field of Search: 348/6, 348/7, 348/9, 348/10, 348/12, 348/13, 348/559, 348/560, 435/3.1, 435/3.2, 435/4.1, 435/4.2, 435/5.1, 435/6.1, 435/6.2, 435/6.3
• US Class Current: 725/101
• CPC Class Codes: H04N 21/26275 for distributing content or additional data in a staggered manner, e.g. repeating movies on different channels in a time-staggered manner in a near video on demand system
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 21/4333 Processing operations in response to a pause request
• CPC Class Codes: H04N 21/47208 for requesting near-video-on-demand content
• CPC Class Codes: H04N 21/47211 for requesting pay-per-view content payment schemes payment architectures or payment protocols G06Q20/00, G07F
• CPC Class Codes: H04N 5/44 Receiver circuitry for the reception of television signals according to analogue transmission standards H04N5/14 takes precedence
• CPC Class Codes: H04N 5/4448 for frame-grabbing
• CPC Class Codes: H04N 7/16 Analogue secrecy systems; Analogue subscription systems
• CPC Class Codes: H04N 7/17309 Transmission or handling of upstream communications

Abstract

A video signal receiver receives a plurality of video channels simultaneously carrying, offset by a transmission interval, a single video program, selects one channel from which to obtain the program for display to a user, and achieves a pause function in the display of the transmitted video program by temporarily storing a segment of the video program equal to the length of the transmission interval and obtaining the remainder of the program at a later time from the same or another channel.

Claims

1. A video signal receiver for receiving a plurality of video channels simultaneously carrying a single video program comprised of video signals, each transmission of said video program on one of said channels being offset by a time interval with respect to the transmission of said video program on another one of said channels, comprising:

memory means for receiving video signals for storage and reproducing stored video signals;

channel selecting means, coupled to said memory means, for selecting one of said video channels and for supplying the video signals carried on the one channel to said memory means and to a display device;

user input means for providing commands from a user; and

control means, coupled to said memory means, said channel selecting means and said user input means, for controlling said channel selecting means to supply a selected channel of video signals to said display device and, in response to a pause command received from said user input means, for controlling said channel selecting means to supply said selected channel of video signals to said memory means and for controlling said memory means to store the video signals carried on said selected channel as a stored segment and, in response to a resume command received from said user input means, for controlling said memory means to reproduce the video signals of said stored segment.

2. Receiver according to claim 1, wherein said memory means has a storage capacity to store video signals transmitted during a time period equal to said interval but said storage capacity is insufficient to store all of said video program.

3. Receiver according to claim 2, wherein said memory means comprises a hard disk drive.

4. Receiver according to claim 3, wherein said memory means further comprises first and second buffer memories.

5. Receiver according to claim 1, wherein said user input means comprises a keypad.

6. Receiver according to claim 1, wherein said user input means comprises a mouse.

7. Receiver according to claim 1, wherein said control means comprises a microcomputer.

8. Receiver according to claim 1, wherein said control means, in response to said pause command, controls said memory means to receive the video signals carried on said selected channel, including a last stored video signal, for only a period of time approximately equal to said time interval if said resume command is not received within said period.

9. Receiver according to claim 8, wherein said control means, in response to said resume command, determines a next channel that is next to carry said last stored video signal.

10. Receiver according to claim 9, wherein said control means, in response to said resume command, controls said channel selecting means to supply the video signals carried on said next channel to said memory means and controls said memory means to store said video signals carried on said next channel.

11. Receiver according to claim 10, wherein said control means controls said memory means to reproduce said stored video signals carried on said next channel after reproducing said stored segment.

12. Receiver according to claim 11, wherein said memory means simultaneously stores said video signals carried on said next channel and reproduces said stored segment.

13. Receiver according to claim 11, wherein said memory means simultaneously stores received video signals carried on said next channel and reproduces the stored video signals that had been carried on said next channel.

14. Receiver according to claim 1, wherein said memory means simultaneously stores and reproduces video signals carried on said selected channel.

15. Receiver according to claim 1, wherein said control means is operable to control said channel selecting means to select a preview channel carrying video signals representing a preview of a video program and to supply said preview channel to said memory means, to control said memory means to store the video signals carried on said preview channel as a stored preview segment, and in response to a preview command received from said user input means, to control said memory means to reproduce said stored preview segment.

16. A video signal receiver for receiving a plurality of video channels simultaneously carrying a single video program comprised of video signals, each transmission of said video program on one of said channels being offset by a time interval with respect to the transmission of said video program on another one of said channels, comprising:

memory means for receiving video signals for storage and reproducing stored video signals;

channel selecting means, coupled to said memory means, for selecting one of said video channels and for supplying the video signals carried on the one channel to said memory means and to a display device;

user input means for providing commands from a user; and

control means, coupled to said memory means, said channel selecting means and said user input means, for controlling said channel selecting means to supply a selected channel of video signals to said display device and, in response to a pause command received from said user input means, for directing the supply of video signals to said memory means for storage, and, in response to a resume command received from said user input means, for controlling said memory means to reproduce the stored video signals.

17. Receiver according to claim 16, wherein said memory means stores video signals for a period of time approximately equal to said time interval.

18. Receiver according to claim 17, wherein said control means, in response to said resume command, determines a next channel that is next to carry video signals from where the stored video signals end.

19. Receiver according to claim 18, wherein said memory means stores video signals carried on said next channel and reproduces the stored video signals carried on said next channel after finishing reproduction of the stored video signals carried on said selected channel.