Interfacing system for stream source apparatus and display apparatus and interfacing method thereof

• US 7,034,891 B2
• Filed: 01/31/2003
• Issued: 04/25/2006
• Est. Priority Date: 02/01/2002
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Cho, Yong Ho, Cho, Nam Seok, Joung, Chul Yong
• Primary Examiner(s): Hsia, Sherrie
• Application Number:
  US10/355,027
• Publication Number:
  US 20030147010A1
• Time in Patent Office: 1,180 Days
• Field of Search: 348563-565, 348/567, 348/568, 348/584, 348/588, 348/598, 348/734, 725/37, 725/131, 725/139, 725/151
• US Class Current: 348/565
• CPC Class Codes: H04N 21/4112 having fewer capabilities than the client, e.g. thin client having less processing power or no tuning capabilities
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 21/4316 for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
• CPC Class Codes: H04N 21/434 Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream demultiplexing of data packets for data networks, e.g. RTP/UDP H04L65/00
• CPC Class Codes: H04N 21/4344 Remultiplexing of multiplex streams, e.g. by modifying time stamps or remapping the packet identifiers
• CPC Class Codes: H04N 21/43637 involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11] arrangements for wireless networking or broadcasting of information in indoor or near-field type systems H04B10/114
• CPC Class Codes: H04N 21/488 Data services, e.g. news ticker systems specially adapted for using meteorological information in broadcast systems H04H60/71
• CPC Class Codes: H04N 5/38 Transmitter circuitry for the transmission of television signals according to analogue transmission standards H04N5/14 takes precedence
• CPC Class Codes: H04N 5/45 Picture in picture , e.g. displaying simultaneously another television channel in a region of the screen

Abstract

An interfacing method and system for a stream source apparatus and a display device, which includes a stream source apparatus receiving analog/digital signals from external analog/digital equipments to generate a plurality of transmission packet streams corresponding to the analog/digital signals, the stream source apparatus synthesizing a plurality of the transmission packet streams into a single synthesized transmission packet stream to transmit the synthesized transmission packet stream by wireless, a display apparatus receiving the synthesized transmission packet stream transmitted from the stream source apparatus, the display apparatus separating the synthesized transmission packet stream into a transmission packet stream corresponding to a main screen and a transmission packet stream corresponding to a sub-screen, the display apparatus decoding the transmission packet streams corresponding to the main screen and the sub-screen respectively to generate digital video/audio signals to display on a display screen by a PIP form.

Claims

1. An interfacing system for a stream source apparatus and a display device, comprising:

a stream source apparatus receiving analog/digital signals from external analog/digital equipments to generate a plurality of transmission packet streams corresponding to the analog/digital signals, the stream source apparatus synthesizing a plurality of the transmission packet streams into a single synthesized transmission packet stream to transmit the synthesized transmission packet stream by wireless; and

a display apparatus receiving the synthesized transmission packet stream transmitted from the stream source apparatus, the display apparatus separating the synthesized transmission packet stream into a transmission packet stream corresponding to a main screen and a transmission packet stream corresponding to a sub-screen, the display apparatus decoding the transmission packet streams corresponding to the main screen and the sub-screen respectively to generate digital video/audio signals to display on a display screen by a PIP form.

2. The interfacing system of claim 1, the stream source apparatus comprising:

a transmission packet stream generating unit receiving the analog/digital signals from the external analog/digital equipments to generate a plurality of the transmission packet streams;

a digital switching unit selecting a plurality of the transmission packet streams to be multiplexed from a plurality of the transmission packet streams generated from the transmission packet stream generating unit;

a transmission packet stream multiplexing unit synthesizing a plurality of the transmission packet streams selected by the digital switching unit into the single synthesized transmission packet stream;

a memory storing the synthesized transmission packet stream of the transmission packet stream multiplexing unit;

a transmission packet stream processing unit judging whether the synthesized transmission packet stream stored in the memory exceeds a previously set amount or not;

a wireless transmitting/receiving unit reading the synthesized transmission packet stream stored in the memory if the synthesized transmission packet stream stored in the memory exceeds the previously set amount, the wireless transmitting/receiving unit modulating the read synthesized transmission packet stream into a radio frequency signal to transmit by wireless; and

a central processing unit controlling operations of the respective units.

3. The interfacing system of claim 2, the transmission packet stream generating unit comprising:

a digital broadcast signal receiving unit receiving a digital broadcast signal from an external antenna to transform into a transmission packet stream form to output;

a digital video/audio signal receiving unit receiving digital video/audio signals as a transmission packet stream from the external digital equipment;

a plurality of analog signal receiving units receiving analog video/audio signals from the external analog equipments; and

an MPEG encoder transforming the analog video/audio signals outputted from the analog signal receiving units into the transmission packet stream form.

4. The interfacing system of claim 2, wherein the transmission packet stream multiplexing unit distinguishes whether the synthesized transmission packet stream corresponds to the main screen or the sub-screen using a stream type guide field inserted in a header of the synthesized transmission packet stream.

5. The interfacing system of claim 2, wherein the wireless transmitting/receiving unit receives a remote control signal transmitted by wireless according to a user'"'"'s operation of a remote controller and outputs the received remote control signal to the central processing unit to carry out a user-demanding predetermined operation.

6. The interfacing system of claim 2, wherein, if a remote control signal according to a user'"'"'s operation of a remote controller is a signal for controlling the stream source apparatus, the wireless transmitting/receiving unit receives the remote control signal and receives a response signal corresponding to the remote control signal transmitted from the central processing unit to transmit by wireless.

7. The interfacing system of claim 1, the display apparatus comprising:

a wireless transmitting/receiving unit receiving the synthesized transmission packet stream transmitted by wireless from the stream source apparatus;

a memory storing the synthesized transmission packet stream received from the wireless transmitting/receiving unit;

a transmission packet stream processing unit judging whether the synthesized transmission packet stream stored in the memory exceeds a previously set amount or not;

a PIP processing unit, if the transmission packet stream processing unit judges that the synthesized transmission packet stream stored in the memory exceeds the previously set amount, reading to separate the synthesized transmission packet stream stored in the memory, the PIP processing unit processing the separated transmission packet stream by PIP; and

a central processing unit receiving the synthesized transmission packet stream to control operations of the respective units.

8. The interfacing system of claim 7, the PIP processing unit comprising:

a transmission packet stream demultiplexer, if the transmission packet stream processing unit judges that the synthesized transmission packet stream stored in the memory exceeds the previously set amount, reading the synthesized transmission packet stream stored in the memory to separate into a plurality of the transmission packet streams;

a first MPEG decoder decoding a plurality of the transmission packet streams separated by the transmission packet stream demultiplexer by MPEG to transform into the digital video/audio signals corresponding to the main screen to output;

a second MPEG decoder decoding a plurality of the transmission packet streams separated by the transmission packet stream demultiplexer by MPEG to transform into the digital video signal corresponding to the sub-screen to output;

an audio processing unit processing the digital audio signal corresponding to the main screen outputted from the first MPEG decoder to output to a speaker; and

a video processing unit carrying out a PIP processing on the digital video signals corresponding to the main screen and the sub-screen respectively outputted from the first and second MPEG decoders to display on a display screen.

9. The interfacing system of claim 8, wherein the transmission packet stream demultiplexer separates the synthesized transmission packet stream using a guide information stored in a stream type guide field of a header of the synthesized transmission packet stream.

10. A stream source apparatus comprising:

a transmission packet stream generating unit receiving analog/digital signals from external analog/digital equipments to generate a plurality of transmission packet streams corresponding to the analog/digital signals;

a digital switching unit selecting a plurality of the transmission packet streams to be multiplexed from a plurality of the transmission packet streams generated from the transmission packet stream generating unit;

a transmission packet stream multiplexing unit synthesizing a plurality of the transmission packet streams selected by the digital switching unit into a single synthesized transmission packet stream;

a memory storing the synthesized transmission packet stream of the transmission packet stream multiplexing unit;

a transmission packet stream processing unit judging whether the synthesized transmission packet stream stored in the memory exceeds a previously set amount or not;

a wireless transmitting/receiving unit reading the synthesized transmission packet stream stored in the memory if the synthesized transmission packet stream stored in the memory exceeds the previously set amount, the wireless transmitting/receiving unit modulating the read synthesized transmission packet stream into a radio frequency signal to transmit by wireless; and

a central processing unit controlling operations of the respective units.

11. The stream source apparatus of claim 10, the transmission packet stream generating unit comprising:

a digital broadcast signal receiving unit receiving a digital broadcast signal from an external antenna to transform into a transmission packet stream form to output;

a digital video/audio signal receiving unit receiving digital video/audio signals as a transmission packet stream from the external digital equipment;

a plurality of analog signal receiving units receiving analog video/audio signals from the external analog equipments; and

an MPEG encoder transforming the analog video/audio signals outputted from the analog signal receiving units into the transmission packet stream from.

12. The stream source apparatus of claim 10, wherein the transmission packet stream multiplexing unit distinguishes whether the synthesized transmission packet stream corresponds to the main screen or the sub-screen using a stream type guide field inserted in a header of the synthesized transmission packet stream.

13. A display apparatus comprising:

a wireless transmitting/receiving unit receiving a synthesized transmission packet stream transmitted by wireless from a stream source apparatus;

a memory receiving to store the synthesized transmission packet stream therein;

a transmission packet stream processing unit judging whether the synthesized transmission packet stream stored in the memory exceeds a previously set amount or not;

a PIP processing unit, if the transmission packet stream processing unit judges that the synthesized transmission packet stream stored in the memory exceeds the previously set amount, reading to separate the synthesized transmission packet stream stored in the memory, the PIP processing unit processing the separated transmission packet stream by PIP; and

a central processing unit receiving the synthesized transmission packet stream to control operations of the respective units.

14. The display apparatus of claim 13, the PIP processing unit comprising:

a transmission packet stream demultiplexer, if the transmission packet stream processing unit judges that the synthesized transmission packet stream stored in the memory exceeds the previously set amount, reading the synthesized transmission packet stream stored in the memory to separate into a plurality of transmission packet streams;

a first MPEG decoder decoding a plurality of the transmission packet streams separated by the transmission packet stream demultiplexer by MPEG to transform into digital video/audio signals corresponding to a main screen to output;

a second MPEG decoder decoding a plurality of the transmission packet streams separated by the transmission packet stream demultiplexer by MPEG to transform into a digital video signal corresponding to a sub-screen to output;

an audio processing unit processing the digital audio signal corresponding to the main screen outputted from the first MPEG decoder to output to a speaker; and

a video processing unit carrying out a PIP processing on the digital video signals corresponding to the main screen and the sub-screen respectively outputted from the first and second MPEG decoders to display on a display screen.

15. The display apparatus of claim 14, wherein the transmission packet stream demultiplexer separates the synthesized transmission packet stream using a guide information stored in a stream type guide field of a header of the synthesized transmission packet stream.

16. An interfacing method for stream source apparatus and display apparatus, comprising:

a judging step of judging whether a remote control signal inputted to a display apparatus in accordance with a user'"'"'s operation of a remote controller is a signal for controlling an operation of the stream source apparatus or the display apparatus;

a performing step of having the display apparatus carry out a corresponding operation according to the inputted remote control signal if the judging step judges that the remote control signal is the signal for controlling the display apparatus;

a transmitting step of having the display apparatus transmit the inputted remote control signal by wireless to the stream source apparatus if the judging step judges that the remote control signal is the signal of controlling the stream source apparatus; and

a step of having the stream source apparatus receive the transmitted remote control signal and multiplexing a plurality of transmission packet streams into a single synthesized transmission packet stream according to the remote control signal to transmit to the display apparatus by wireless.

17. The method of claim 16, further comprising a step of, after an operation according to the received remote control signal is carried out, generating a response signal for acknowledging a reception of the remote control signal and informing that the operation according to the remote control signal is carried out and transmitting the response signal to the display apparatus by wireless.