Abstract: 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.

Abstract: An audio/video switching system is described that selectively enables multiple heterogeneous audio/video sources to transmit data to a single audio/video sink such as a display or audio/video repeater. The audio/video switching system supports format conversion to enable, for example, multiple different audio/video formats to be transmitted to the audio/video sink using a single link. In some implementations, the single link is a high-bandwidth, high-quality wireless link for carrying high definition and standard definition audio/video signals. Various home theater systems that include such an audio/video switching system are also described herein.

Abstract: The present invention is directed to methods and apparatus for improving error indication performance in systems employing low-density parity check (LDPC) codes. In one aspect, a method and apparatus for providing error indication based on full LDPC parity check re-encoding are provided. In an embodiment, an LDPC encoder is employed at the receiver to re-encode the parity bits. In another embodiment, the parity bits are re-encoded recursively based on information readily available at the decoder of the receiver. In another aspect, a method and apparatus for providing error indication based on partial LDPC parity check re-encoding are provided. In an embodiment, partial checksum information is determined based on the decoder output and used to provide error indication. In a further aspect, a hybrid CRC checking and LDPC parity check re-encoding approach is provided. This approach further enhances error indication performance by reducing the miss probability compared to pure LDPC parity check re-encoding.

Abstract: The present invention is directed to methods and systems for enabling secure and efficient wireless transmission of HDCP-encrypted high definition (HD) signals. In one aspect, the present invention provides methods and systems for reducing the data rate required to convey HD content to enable direct wireless transmission of HD content. In another aspect, the present invention provides methods and systems for reducing the data rate required to convey HD content that are compatible with HDCP encryption of content. In a further aspect, the present invention provides methods and systems for reducing the data rate required to convey HD content while maintaining a high quality of content.

Abstract: The present invention is directed to a system, method, and apparatus to transmit/receive TMDS signals using general purpose differential transmitter and receivers. In an embodiment, the general purpose differential transmitter and receivers are designed to operate with differential signaling schemes such as LVDS and LVPECL. In one aspect, embodiments according to the present invention enable the re-configuration of existing and fully-characterized LVDS/LVPECL transmitter/receiver cells to support TMDS (using minimal sets of external components). This provides considerable cost and development time savings, thereby allowing the development of products much more expediently. In another aspect, embodiments according to the present invention provide interfacing methods and systems between differential signaling schemes such as LVDS/LVPECL and TMDS.

Abstract: A system, method, and apparatus that improves the efficiency of HD content delivery systems. An embodiment of the invention eliminates unnecessary encoding overhead due to TMDS encoding in HD content delivery systems. An embodiment of the invention further allows for increased error protection at lower overhead in HD content delivery systems. Furthermore, embodiments of the present invention provide less expensive and more efficient techniques for transmitting content protection information in HD content delivery systems. The invention is applicable to HD content delivery systems such as DVI and HDMI systems, including systems that employ novel data transmission techniques of the present invention as well as conventional content delivery systems. The invention is applicable to copper and fiber HD content delivery systems.

Abstract: A improved method and system for regenerating a video pixel and/or audio sampling clock in a system that wirelessly transfers video and audio content from a content source to a content sink.

Abstract: The present invention is directed to a system, method and apparatus for implementing a content delivery system that includes at least one bi-directional distribution system between a generalized content source and a generalized content sink. The bi-directional distribution system enables the content source and the content sink to coordinate with each other to determine the capabilities of the content distribution system, the content source, and the content sink, and to best control the content format accordingly.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.