TV data capture device

• US 4,894,789 A
• Filed: 02/22/1988
• Issued: 01/16/1990
• Est. Priority Date: 02/22/1988
• Status: Expired due to Term

• Current Assignee: Allen Pattiselanno
• Original Assignee: Keen Y. Yee
• Inventors: Yee, Keen Y.
• Primary Examiner(s): Harkcom, Gary V.
• Assistant Examiner(s): HERNDON, HEATHER R
• Application Number:
  US07/158,592
• Time in Patent Office: 694 Days
• Field of Search: 364/518, 364/521, 364/522, 358/84, 358/86, 358/91, 358/92, 358/93, 358/94, 358/296, 358/301, 360/5, 369/48, 369/49, 369/83, 455/3, 455/4
• US Class Current: 348/552
• CPC Class Codes: H04N 21/47 End-user applications
• CPC Class Codes: H04N 21/4888 for displaying teletext characters
• CPC Class Codes: H04N 7/0882 for the transmission of character code signals, e.g. for teletext circuits for the digital non-picture data signal H04N7/035

Abstract

A tv capture device is described which is incorporated with a conventional tv set or monitor. The data capture device extracts digital data from a composite video-digital signal and allows one to selectively store, retrieve stored information, and display the information on a tv screen or monitor. The apparatus includes a digital data extractor for extracting the digital data from the composite video signal, a memory unit, a permanent storage unit, and a microprocessor for receiving the extracted digital data. The microprocessor is controlled by a remote control device enabling information to be stored and retrieved from storage for display on a tv screen. A digital-video converter is used to convert the extracted digital data to video signals to simultaneously display the extracted digital data with the currently transmitted program.

Claims

1. A digital data capture apparatus used by a receiving party and operating in combination with a receiving tv set or monitor, comprising:

a tv set or monitor,

means associated with said tv set or monitor for receiving a composite video-digital signal, said signal including digital data having no addresses associated therewith,

an extraction circuit enabling the receiving party to extract selected digital data from said composite signal,

storage means for storing said selected digital data under control of instructions directed to a microprocessor,

memory means communicating with said microprocessor for storing programs, said selected digital data, and addresses therefor,

a microprocessor for receiving said selected digital data from said extraction circuit, said microprocessor communicating with said memory means and with said storage means for controlling the selected storage, retrieval, and display of said selected digital data, and

a digital-to-video converter for converting said selected digital data to video signals suitable for display on the screen of said tv set or monitor.

2. The apparatus of claim 1, further including input control means communicating with said microprocessor to enable said receiving party to select the extracted digital data to be stored in said storage means and to be retrieved therefrom for display on the screen of said tv set or monitor.

3. The apparatus of claim 2, where said input control means is a remote control device communicating with said microprocessor.

4. The apparatus of claim 1, further including an interface circuit interconnecting said storage means and a computer.

5. The apparatus of claim 1, where said memory means includes a random access memory and a read only memory.

6. The apparatus of claim 1, further including a communication link between said extraction circuit and the screen of said tv set or monitor to enable the transmission of video signals from said composite signal to be continuously displayed on the screen of said tv set or monitor.

7. The apparatus of claim 1, further including a signal switcher and modulator circuit between said digital-to-video convertor and said tv set or monitor for allowing simultaneous display of digital data and said video signal.

8. A digital data capture apparatus used by a receiving party and operating in combination with a tv set or monitor, comprising:

a tv set or monitor having associated therewith a receiving means for receiving a composite video-digital signal, said signal having no addresses associated therewith,

an extraction circuit connected to said receiving means and enabling said receiving party to extract selected digital data from said composite signal, and

processing means including a processor operating under control of a stored program and storage means for storing said selected digital data, said processor enabling said receiving party to selectively store said extracted digital data, retrieve selected digital data from storage, and display said selected digital data on the screen of said tv set or monitor.

9. The apparatus of claim 8, further including a digital-video converter circuit for converting said extracted digital data to video signals for simultaneous display of said digital data and said video signals on the screen of said tv set or monitor.

10. The apparatus of claim 9, including input control means for communication with said processor for enabling the selective storage, retrieval, and display of said data.

11. The apparatus of claim 10, where said processing unit includes memory means for storage of instructions for said processing unit, said memory means including a random access memory and a read only memory.

12. The apparatus of claim 8, further including signal switching and modulator means for allowing simultaneous display on said TV screen or monitor of said selected digital data and said video signal.

13. The apparatus of claim 8, further including a personal computer which provides said processor, and said storage means.

14. A digital data capture device used by a receiving party and operating in combination with a personal computer, comprising:

a personal computer capable of receiving a composite video-digital signal, said digital signal having no addresses associated with it,

means for delivering said composite video-digital signal to said personal computer,

an integrated circuit card having as components therein

an extraction circuit enabling said receiving party to extract selected digital data from said composite signal,

a digital-to-video converter for converting said extracted digital data to video signals suitable for display on a screen of a display associated with said personal computer,

storage means for storing said extracted digital data under control of instructions directed to a microprocessor, and

memory means communicating with said microprocessor for storing programs, said extracted digital data and addresses thereof, and a microprocessor receiving said extracted digital data from said extraction circuit, said microprocessor communicating with said memory means and with said storage means for controlling the selected storage, retrieval, and display of said extracted digital data.