Abstract: A method for reducing transmit echo in a DSL modem comprises selecting at least one cancellation device of a plurality of cancellation devices. An attenuation signal is generated using the selected cancellation device. At least a portion of transmit echo is removed from a receive signal using the attenuation signal.
Type:
Grant
Filed:
September 3, 2002
Date of Patent:
November 20, 2007
Assignee:
Texas Instruments Incorporated
Inventors:
Sandeep K. Oswal, Prakash Easwaran, Arijit Raychowdhury, Fernando A. Mujica
Abstract: A method and apparatus for handling both proprietary and non-proprietary formatted compact discs in the same video playback system. In one embodiment, the audio and video data signals are in a Moving Pictures Expert Group (MPEG) format. Portions of the novel system operate within a high level format independent software library and portions of the novel system operate within a low level software driver of the playback system that receives disc information from a proprietary or non-proprietary disc present to the playback system to be played. The novel system of the present invention includes a disc format determinator for checking the data contained on a disc to see if it includes proprietary information specific to the playback system. In the present invention the proprietary information may be either VideoCD or CD-I disc format information. If a disc presented to the playback system is formatted for a non-proprietary disc format i.e.
Abstract: A display control system (200) for transferring video and graphical data processed in a first processing device (201) having a dedicated display screen to a second processing device (202) for display on the screen (152) of a conventional television set (150). The first processing device (201) and the second processing device (202) communicate by means of a pair of optical driver/receivers (203, 207). The second processing device (202) captures selected frames from a broadcast television picture displayed on the screen (152) of the television (150) and transmits the captured frames to the first processing device (201) for storage or display on the dedicated display screen.
Abstract: A memory architecture 104 includes a plurality of arrays 200 of memory cells. Addressing circuitry 201 selects a cell of a selected one of arrays 201 for access while feature select circuitry 205 selects an access type to be performed to the selected cell. A first bus 207, 208, 209 exchanges a bit of data with the selected cell in response to the selection of a first access type. A second bus 207, 208, 209 exchanges a bit of data with the selected cell in response to the selection of a second access type.