Personal video recorder and method of transmitting broadcast signal to external multimedia apparatus from the same

• US 20070079344A1
• Filed: 09/29/2006
• Published: 04/05/2007
• Est. Priority Date: 09/30/2005
• Status: Abandoned Application

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Song, Dae
• Application Number:
  US11/529,527
• Publication Number:
  US 20070079344A1
• Time in Patent Office: Days
• US Class Current: 725/100
• CPC Class Codes: H04N 21/2662 Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
• CPC Class Codes: H04N 21/4135 external recorder interface circuits between an apparatus for recording television signals and a television receiver H04N5/775
• CPC Class Codes: H04N 21/4147 PVR [Personal Video Recorder] H04N5/76 takes precedence ; arrangements for broadcast with accumulation-type receivers H04H20/40
• CPC Class Codes: H04N 21/42661 for reading from or writing on a magnetic storage medium, e.g. hard disk drive
• CPC Class Codes: H04N 21/440236 by media transcoding, e.g. video is transformed into a slideshow of still pictures, audio is converted into text
• CPC Class Codes: H04N 5/76 Television signal recording
• CPC Class Codes: H04N 5/765 Interface circuits between an apparatus for recording and another apparatus
• CPC Class Codes: H04N 5/781 on disks or drums

Abstract

A personal video recorder and method of transmitting a broadcast signal to an external multimedia apparatus from the same are disclosed, by which various application environments can be provided by establishing a multimedia support environment in transmitting broadcast data or reproducing a broadcast signal by a multimedia device in a manner of interconnecting a PVR to the multimedia device. The present invention includes connecting an external multimedia device to a personal video recorder, setting an encoding option corresponding to A/V parameters of the connected external multimedia device, receiving a broadcast signal via a tuner of the personal video recorder, separating A/V data into an audio signal and a video signal by demultiplexing the received broadcast signal, transcoding the separated audio and video signals into transcoded data by the set encoding parameter and transferring the transcoded data to the external multimedia device.

Claims

1. A method of transferring a broadcast signal, comprising the steps of:

connecting an external multimedia device to a personal video recorder;

setting an encoding parameter corresponding to A/V parameters of the connected external multimedia device;

receiving a broadcast signal via a tuner of the personal video recorder;

separating A/V data into an audio signal and a video signal by demultiplexing the received broadcast signal;

transcoding the separated audio and video signals into transcoded data by the set encoding parameter; and

transferring the transcoded data to the external multimedia device.

2. The method of claim 1, further comprising the step of storing the transcoded data in an HDD of the external multimedia device.

3. The method of claim 1 or claim 2, wherein the external multimedia device comprises at least one selected from the group a PMP, a PDA, a PSP and a mobile communication terminal.

4. The method of claim 1, wherein the encoding parameter includes a data format, resolution and frame rate supported by the external multimedia device.

5. A personal video recorder, which is connected to an external multimedia device to transfer a broadcast signal, the personal video recorder comprising:

a control unit setting an encoding parameter corresponding to A/V parameters of the connected external multimedia device;

a tuner receiving the broadcast signal;

a demodulator converting the received broadcast signal to an intermediate frequency;

a demultiplexer demultiplexing to separate the converted signal into an audio signal and a video signal;

a system memory temporarily storing the separated audio and video signals; and

a transcoder transcoding the audio and video signals from the system memory into the transcoded data by the set encoding parameter.

6. The personal video recorder of claim 5, wherein the transcoded data is stored in an HDD of the external multimedia device.

7. The personal video recorder of claim 5 or claim 6, wherein the external multimedia device comprises at least one selected from the group a PMP, a PDA, a PSP and a mobile communication terminal.

8. The personal video recorder of claim 7, wherein the control unit sets the encoding parameter to a data format, resolution and frame rate supported by the external multimedia device.

9. The personal video recorder of claim 7, wherein the transcoder performs real-time full-decoding and full-encoding on the received broadcast signal.

10. The personal video recorder of claim 8, wherein the data format corresponds to at least one selected from the group consisting of a video, an audio, an image and a text.