Abstract: A method and apparatus for detecting copy protection included in an input video signal is described. Two types of copy protection are particularly addressed, including techniques that imbed copy protection pulses and copy protection phase flips in the video signal. A method for preserving copy protection is also presented, where the input video signal is first examined to determine if copy protection has been included in the input video signal. The input video signal then converted to component video data, which removes any copy protection present. An output video signal is then generated from the component video data, and when it was determined that the input video signal includes copy protection, the copy protection is recreated in the output video signal.
Abstract: A method and apparatus for detecting copy protection included in an input video signal is described. Two types of copy protection are particularly addressed, including techniques that imbed copy protection pulses and copy protection phase flips in the video signal. A method for preserving copy protection is also presented, where the input video signal is first examined to determine if copy protection has been included in the input video signal. The input video signal then converted to component video data, which removes any copy protection present. An output video signal is then generated from the component video data, and when it was determined that the input video signal includes copy protection, the copy protection is recreated in the output video signal.
Abstract: A microprocessor chip, and methods for use in that microprocessor chip. The chip has instruction pipeline circuitry and address translation circuitry. Table lookup circuitry indexes into a table, the table having an entry associated with each corresponding address range translated by the address translation circuitry. Each entry of the table describes a likelihood of the existence of an alternate coding of instructions located in the respective corresponding address range. The table lookup circuitry retrieves a table entry corresponding to the address, and is operable as part of the basic instruction cycle of executing an instruction of a non-supervisor mode program executing on a computer.
Type:
Grant
Filed:
October 28, 1999
Date of Patent:
June 27, 2006
Assignee:
ATI Technologies, SRL
Inventors:
John S. Yates, Jr., David L. Reese, Paul H. Hohensee, Korbin S. Van Dyke, T. R. Ramesh
Abstract: A method and apparatus for interfacing memory with a bus in a computer system includes processing that begins by receiving a transaction from the bus. The transaction may be a read transaction and/or a write transaction. Upon receiving the transaction, the process continues by validating the received transaction and, when valid, acknowledges its receipt. The processing then continues by storing the physical address, which was included in the received transaction, and the corresponding command in an address/control buffer. The processing continues by retrieving the physical address from the address/control buffer when the transaction is to be processed. The determination of when the transaction is to be processed is based on an ordering within the address/control buffer. The processing then continues by performing the transaction utilizing a first or second memory path based on the physical address, such that a first or second memory is accessed.
Type:
Grant
Filed:
August 18, 1999
Date of Patent:
August 27, 2002
Assignee:
ATI Technologies SRL
Inventors:
Ali Alasti, Nguyen Q. Nguyen, Govind Malalur