A system, method and apparatus for implementing a wireless point-to-point interface that securely and robustly delivers digital content from a generalized content source to a generalized content sink. The system, method and apparatus performs in a manner that is sufficiently secure and robust to serve as a replacement for the delivery of HDMI content over cable. The system, method and apparatus is also applicable to the delivery of other types of content traditionally delivered over cable, including but not limited to Digital Video Interface (DVI) content, composite video (CVSB) content, S-video content, RGB video content, YUV video content, and/or various types of audio content.

System, method and apparatus for wireless delivery of content between a generalized content source and a generalized content sink

A system, method and apparatus for implementing a wireless point-to-point interface that securely and robustly delivers media content from a generalized content source to a generalized content sink. The system, method and apparatus performs in a manner that is sufficiently secure and robust to serve as a replacement for the delivery of High-Definition Multimedia Interface (HDMI) content or Digital Video Interface (DVI) content over cable. An aspect of the present invention performs Inter-Integrated Circuit (I2C) decoding and encoding operations to implement a wireless HDMI or DVI interface between the generalized content source and the generalized content sink. The I2C decoding and encoding operations are performed as necessary to support the reception, decoding and transmission of a Display Data Channel (DDC) channel.

System, method and apparatus for wirelessly providing a display data channel between a generalized content source and a generalized content sink

A system, method and apparatus for implementing a wireless point-to-point interface that securely and robustly delivers digital content from a generalized content source to a generalized content sink. The system, method and apparatus performs in a manner that is sufficiently secure and robust to serve as a replacement for the delivery of HDMI content over cable. The system, method and apparatus is also applicable to the delivery of other types of content traditionally delivered over cable, including but not limited to Digital Video Interface (DVI) content, composite video (CVSB) content, S-video content, RGB video content, YUV video content, and/or various types of audio content. The system, method and apparatus performs dynamic and opportunistic placement of training information within a digital media frame to allow effective impairment estimation and power level setting for wireless content transfer.

System, method and apparatus for placing training information within a digital media frame for wireless transmission

A system, method and apparatus for implementing a wireless point-to-point interface that securely and robustly delivers media content from a generalized content source to a generalized content sink. The system, method and apparatus performs in a manner that is sufficiently secure and robust to serve as a replacement for the delivery of HDMI content over cable. The system, method and apparatus is also applicable to the delivery of other types of content traditionally delivered over cable, including but not limited to Digital Video Interface (DVI) content, composite video (CVSB) content, S-video content, RGB video content, YUV video content, and/or various types of audio content. The system, method and apparatus performs an automatic detection and automatic connection process to foster connectivity between a generalized content source and a generalized content sink.

System, method and apparatus for automatic detection and automatic connection between a generalized content source and a generalized content sink

A system, method and apparatus for the wireless delivery of analog media from a media sink to a media source. The system, method and apparatus receives analog video and/or analog audio from the media source in respective native formats. The system, method and apparatus converts the received analog video and/or analog audio from respective native formats to a transmission format. The received analog video and/or analog audio is further processed for transmission over a wireless channel. The system, method and apparatus receives and processes the transmitted signal to produce recovered analog video and/or analog audio information. The recovered analog video and/or analog audio information is converted from the transmission format back to the respective native formats for delivery to the media sink. The system, method and apparatus provides a high data rate, low power wireless signal to the media sink at a low bit error rate.

System, method and apparatus for wireless delivery of analog media from a media source to a media sink

As shown in Fig. 7, a data reception device receives a division parameter N based on the video data pixel clock and the audio data sampling frequency transmitted from a data transmission device and a count value CTS counting the audio clock frequency after the division by the division parameter N by using the pixel clock. The pixel clock is divided by the count value CTS and the divided clock (s501) after the division is phase-controlled by a phase comparison clock (s505) obtained by dividing an audio clock (s403) oscillated from a VCO (504) by the division parameter N. In this way, the audio clock (s403) is generated. Thus, it is possible to provide a data transmission device and a data reception device of simple configuration capable of preferably multiplexing a video data on audio data and transmitting them by using an existing cable of DVI standard.

Data transmission device and data reception device

PROBLEM TO BE SOLVED: To provide a data transmission apparatus and a data receiving apparatus which transmit an audio data to an image data in a simple constitution and well by multiplexing it using a cable to meet DVI regulations and the like. SOLUTION: A pixel clock of the image data is transmitted from a data transmitting side. A frequency dividing parameter N to get in the range of 300Hz≤audio clock/N≤3000Hz and a counted value CTS to count a period of the audio clock by the pixel clock after the frequency-division by the frequency dividing parameter N are transmitted from the data transmitting side. At a data receiving side, the pixel clock is frequency-divided by the counted value CTS and a frequency dividing clock s501 after the frequency-division is phase-controlled by a phase-comparison clock s505 to frequency-divide the audio clock s403 oscillated from a VCO504 by the frequency dividing parameter N. Thus, the audio clock s403 is generated. COPYRIGHT: (C)2004,JPO

Data transmission apparatus and data receiving apparatus

As shown in FIG. 7 , a data receiver receives video data and audio data together with a frequency division parameter N that depends on the pixel clock of the video data and the sampling frequency of the audio data, and a count value CTS that is obtained by counting the period of the audio clock that has been subjected to frequency division by the frequency division parameter N, with the pixel clock, which are transmitted from a data transmitter, and subjects the pixel clock to frequency division by the count value CTS, phase-control the divided clock (s 501 ) in accordance with a phase comparison clock (s 505 ) that is obtained by dividing an audio clock (s 403 ) oscillated from a VCO ( 504 ) by the frequency division parameter N, thereby generating an audio clock (s 403 ). Accordingly, the data transmitter and the data receiver can satisfactorily implement multiplexing of audio data and video data, and transmission of the multiplexed data using an existing DVI cable, with a simple structure.

Naoki Ejima

Papers

Data transmission device and data reception device

Data transmission apparatus and data receiving apparatus

Data transmitter and data receiver