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Method and apparatus for transmitting OSD information to a remote display device

A technology of remote display and display device, applied in image communication, components of color TV, components of TV system, etc., can solve problems such as exceeding bandwidth limit, generating OSD signal, unclear system function, etc.

Inactive Publication Date: 2005-05-25
INTERDIGITAL CE PATENT HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, because DTV's decoders are located far from the playback or recording system, it is difficult to generate an OSD signal on DTV, and thus it is generally unclear to DTV what function these systems are performing
Also, generating an OSD signal on a playback or recording device and including an OSD signal in a bitstream being transmitted to a DTV may cause the bitstream to exceed the bandwidth limit between the playback or recording system and the DTV

Method used

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  • Method and apparatus for transmitting OSD information to a remote display device
  • Method and apparatus for transmitting OSD information to a remote display device
  • Method and apparatus for transmitting OSD information to a remote display device

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Embodiment Construction

[0016] figure 1 A system 100 for implementing the solutions of the present invention is shown in block diagram form in FIG. However, the present invention is not limited to figure 1 The particular system shown in , as the invention may be practiced with any other system capable of receiving a digitally encoded signal and transmitting the signal to a display device. This includes any digital video playback or recorder system. Furthermore, system 100 is not limited to reading data from or writing data to a particular type of storage medium, as any storage medium capable of storing digitally encoded data, such as optical media and hard drives, may be used with system 100 .

[0017] The system 100 includes a controller 110 for reading data from or writing data to a storage medium 112 . System 100 also includes microprocessor 114 , search engine 116 , coder / decoder (codec) 118 , display device 120 , and table or memory 124 . Codec 118 contains appropriate software and circuitry...

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PUM

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Abstract

A method (200) and apparatus (100) for displaying in a remote display device a user command or status information in a digitally encoded video signal containing images transmitted from the device to the remote display device . The method comprises the steps of: generating (216 or 220) at least one digitally encoded token representing the user command or status information; in response to the user command, modifying (218) a plurality of At least one of the images—ie, replacing at least a portion of the image with the digitally encoded indicia such that when the image is decoded and displayed by the display device, the indicia is decoded and displayed (220). The method may further comprise reading the digitally encoded signal from a storage medium contained by the device, the steps of generating and modifying may be performed during the step of reading. Alternatively, the generating step may be performed before the reading step.

Description

field of invention [0001] The present invention relates generally to video playback and recording systems, and more particularly to video playback and recording systems that generate video signals for display on a display device. Background of the invention [0002] Digital television (DTV) and high definition television (HDTV) are gaining popularity in today's consumer electronics market. Many buyers of these types of televisions also purchase digital video playback or recording systems, such as digital video disk (DVD) recorders or DVD players, to watch previously recorded programs or to record their favorite programs. In particular, a DTV (or HDTV) combination with a playback or recording system can be an integral part of a home theater entertainment system. [0003] Digital video playback or recording systems typically include an MPEG decoder for decoding digitally encoded multimedia data stored on a disc for playback on the recorder. If a digital video playback or rec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/76H04N5/445H04N5/781H04N5/85H04N5/91H04N19/00H04N19/423H04N19/426H04N19/503H04N21/235H04N21/2389H04N21/435H04N21/485H04N21/643
CPCH04N5/781H04N5/85H04N21/4135H04N21/4325H04N21/44016H04N21/488H04N21/434H04N5/76H04N5/775
Inventor S·林M·A·舒尔茨
Owner INTERDIGITAL CE PATENT HLDG
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