Television receiver with shared data port and control software

• US 6,870,570 B1
• Filed: 10/31/2000
• Issued: 03/22/2005
• Est. Priority Date: 10/31/2000
• Status: Expired due to Fees

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Bowser, Todd S.
• Primary Examiner(s): Kostak, Victor R.
• Application Number:
  US09/702,229
• Time in Patent Office: 1,603 Days
• Field of Search: 348/552, 348/553, 348/734, 348/460, 725/80, 725/133, 725/141, 725/153
• US Class Current: 348/552
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/4117 for generating hard copies of the content, e.g. printer, electronic paper interfaces to printers G06F3/12; printing data G06K15/02
• CPC Class Codes: H04N 21/4122 additional display device, e.g. video projector digital output for controlling a plurality of local displays G06F3/1423
• CPC Class Codes: H04N 21/41265 having a remote control device for bidirectional communication between the remote control device and client device unidirectional remote control device H04N21/42204
• CPC Class Codes: H04N 21/4348 Demultiplexing of additional data and video streams
• CPC Class Codes: H04N 21/435 Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• CPC Class Codes: H04N 21/4355 involving reformatting operations of additional data, e.g. HTML pages on a television screen optimising the visualization of content for information retrieval from the Internet G06F16/9577; adaptation of message content in packet-switching networks H04L51/066; media handling at the source in data packet switching networks H04L65/764
• CPC Class Codes: H04N 21/47 End-user applications
• CPC Class Codes: H04N 21/482 End-user interface for program selection broadcast systems using EPGs H04H60/72
• CPC Class Codes: H04N 5/775 between a recording apparatus and a television receiver
• CPC Class Codes: H04N 7/0887 for the transmission of programme or channel identifying signals

Abstract

A system for transferring data from a television receiver to a display device and a shared data device includes a digital television receiver, a display device, at least one shared data device, and a communications channel coupled to the television receiver and the shared data devices. The television receiver receives, decodes, and processes a digitally encoded television signal (e.g., MPEG). This processed signal is provided to a display device (e.g., television monitor). In addition, an auxiliary data signal, sent with the digitally encoded television signal, is sent to at least one shared data device. Each of the shared data devices may be a printer, another television receiver, a digital video tape recorder, or a personal digital assistant (PDA). With a system as described herein, the auxiliary data may be an electronic program guide such that a viewer may print a program menu for subsequent review. Upon reviewing the printed program menu, the viewer may then select a channel for viewing or program a video tape recorder to record a selected channel. Alternatively, a viewer may transfer the electronic program guide to a PDA, review the program menu on the PDA, and subsequently program the television receiver, via the PDA, to select a channel for viewing or program a video tape recorder, via the PDA, to record a selected channel.

Claims

1. A system for providing auxiliary data from a television receiver comprising:

a terminal for applying a data stream to the television receiver, the data stream including a television signal and the auxiliary data;

a controller internal to the television receiver which processes the data stream to extract the auxiliary data, to determine a type of shared data device to receive the auxiliary data and to format the auxiliary data in accordance with requirements of the determined type of shared data device;

a plurality of shared data devices of different types coupled to the television receiver; and

a communications channel for coupling the television receiver to the plurality of shared data devices to transfer the auxiliary data exclusive of the television signal from the controller to at least one of the plurality of shared data devices as determined by the controller.

2. A system according to claim 1, wherein the television receive is a set top box and the system further includes:

a display device;

an audio processor; and

a video processor;

wherein the controller extracts the television signal from the data stream, divides the data stream into separate audio and video components and provides the audio components to the audio processor and the video components to the video processor and, wherein the video processor provides processed video signals for display on the display device.

3. A system according to claim 2 further comprising a digital video tape recorder coupled to the television receiver.

4. A system according to claim 1, wherein the plurality of shared data devices include at least one of a printer, a digital video tape recorder and a personal digital assistant.

5. A system for processing auxiliary data sent with a digital television signal comprising:

a television receiver for receiving and processing the digital television signal, to provide a processed television signal, to extract the auxiliary data from the digital television signal, to determine, from the auxiliary data, a type of shared data device to receive the auxiliary data, to format the auxiliary data in accordance with requirements of the determined type of shared data device, and to provide the auxiliary data signal exclusive of the processed television signal in accordance with a shared data device communications channel protocol;

a plurality of shared data devices;

a shared data device communications channel, that operates according to the shared data device communications channel protocol, for coupling the television receiver to at least one of the plurality of shared data devices according to the type or shared data device determined by the television receiver to receive the auxiliary data; and

a display device for receiving and displaying the processed television signal.

6. A system according to claim 5, wherein the television receiver is a set top box.

7. A system according to claim 6 further comprising a digital video tape recorder coupled to the television receiver.

8. A system according to claim 5, wherein the at least one shared data device is selected from a group consisting of a further set top box, a primer, a digital video tape recorder, and a personal digital assistant.

9. A television receiver comprising:

a front end interface for receiving a digital television signal, including auxiliary data and providing video and audio signals;

a remote control receiver for receiving an initialization signal and providing a control signal;

a video processing and decoding portion for receiving, processing, and decoding the video signal and providing an output video signal;

an audio processing and decoding portion for receiving, processing, and decoding the audio signal and providing an output audio signal;

a controller for receiving the video, audio and initialization signals, and auxiliary data and providing data signals and further control signals corresponding to the auxiliary data;

an output interface portion coupled to a communication channel for receiving the output audio and video signals and for providing the output audio and video signals for presentation; and

a shared data decoder and formatter coupled to the controller for receiving the data signals exclusive of the audio and video signals and, responsive to the initialization signal for determining, from the auxiliary data, a type of shared data device to receive the auxiliary data, for formatting the data signal according to the determined format and for providing the formatted data signal to a shared data device of the determined type in accordance with a communications channel protocol.

10. A television receiver in accordance with claim 9, wherein the television receiver is a set top box.

11. A television receiver in accordance with claim 9 further comprising at least one shared data device coupled to said shared data communications channel for receiving the formatted data signal in accordance with the communications channel protocol.

12. A television receiver in accordance with claim 9 further inducing a memory buffer coupled between the shared data decoder and formatter and the shared data communications channel.

13. A television receiver in accordance with claim 11 wherein the at least one shared data device is at least one of a printer, a digital video tape recorder, and a personal digital assistant.

14. A method for transferring auxiliary data from a television receiver to shared data device comprising the acts of:

a) receiving an initialization signal;

b) decoding the initialization signal to determine a type of shared data device to receive the auxiliary data;

c) acquiring a page of the auxiliary data;

d) formatting the page of auxiliary data in accordance with requirements of the type of shared data device; and

e) transferring said page of data to said shared data device.

15. The method according to claim 14, wherein acts c) through e) are repeated for each page of auxiliary data to be transferred.

16. The method according to claim 14, wherein the act of transferring said page of auxiliary data to said shared data device further includes the act of transferring said page of data according to a protocol suitable for one of a printer, a digital video tape recorder, and a personal digital assistant.