摘要:
In a method and system for component sync detection and alignment, the Y/G channel is used as a master channel from which the vertical and the horizontal syncs are detected by a master sync generator. The master sync generator determines a fast and slow slice level for generating a rough and a fractional detection of the vertical sync and the horizontal sync and also generates a master sync timing window signal. A slave sync generator aligns the Pb/B and Pr/R channels to the Y/G channel by making use of the vertical, horizontal, and timing window sync signals produced by the master sync generator and by generating a slave slice level to detect the vertical and horizontal syncs in the slave channels. Positional differences in the alignment between the master channel and the slave channels are determined and stored for use in subsequent frame alignment.
摘要:
In a method and system for component sync detection and alignment, the Y/G channel is used as a master channel from which the vertical and the horizontal syncs are detected by a master sync generator. The master sync generator determines a fast and slow slice level for generating a rough and a fractional detection of the vertical sync and the horizontal sync and also generates a master sync timing window signal. A slave sync generator aligns the Pb/B and Pr/R channels to the Y/G channel by making use of the vertical, horizontal, and timing window sync signals produced by the master sync generator and by generating a slave slice level to detect the vertical and horizontal syncs in the slave channels. Positional differences in the alignment between the master channel and the slave channels are determined and stored for use in subsequent frame alignment.
摘要:
Methods and systems for automatic phase locking of analog inputs are disclosed. Aspects of one method may include calibrating one of a plurality of video signals. A next phase for a sampling clock may be determined via the calibration, and a phase of the sampling clock may be adjusted to the determined next phase. The samples generated using the sampling clocks may be displayed on a video display, while the samples generated using the calibration clock may not be displayed on a video display.
摘要:
A television on a chip (TVOC) system that provides a cost effective approach for providing television functionality on a single integrated circuit chip is disclosed. A TVOC includes the functionality necessary to receive and display television signals in a variety of input and output formats. A TVOC can be used in set-top boxes for cable and satellite television, or directly within a television. All functionality provided can be provided on a single integrated circuit. TVOC includes a data transport module, an IF demodulator, a digital audio engine, an analog audio engine, a digital video engine, and an analog video engine. The TVOC also includes three sets of interfaces including output interfaces, control interfaces and ancillary interfaces. Further features and embodiments provide enhanced functionality and increased efficiencies.
摘要:
A system and method for synchronizing sub-carriers in a signal processing system. Various aspects of the present invention may comprise method steps and structure that receive a sampled signal. Various aspects may produce a synchronization signal based on the sampled signal. Various aspects may generate and store a cropped version of the received sampled signal. Various aspects may read a cropped sampled signal from memory that corresponds to the received sampled signal. Various aspects may generate a restored sampled signal by adding samples to the cropped sampled signal read from memory. Various aspects may, based on the synchronization signal, output the restored sampled signal coarsely synchronized to the received sampled signal. Various aspects may determine a phase difference between the output restored sampled signal and the output received sub-carrier. Various aspects may adjust the phase of the restored sampled signal in response to the determined phase difference.
摘要:
A system and method for synchronizing sub-carriers in a signal processing system. Various aspects of the present invention may comprise method steps and structure that receive a sampled signal. Various aspects may produce a synchronization signal based on the sampled signal. Various aspects may generate and store a cropped version of the received sampled signal. Various aspects may read a cropped sampled signal from memory that corresponds to the received sampled signal. Various aspects may generate a restored sampled signal by adding samples to the cropped sampled signal read from memory. Various aspects may, based on the synchronization signal, output the restored sampled signal coarsely synchronized to the received sampled signal. Various aspects may determine a phase difference between the output restored sampled signal and the output received sub-carrier. Various aspects may adjust the phase of the restored sampled signal in response to the determined phase difference.
摘要:
A method and system for sorting a number of items in a computer system. The sort is based on a plurality of values of a key. Each item has a value of the plurality of values. The method and system include providing plurality of stages, providing at least one switch coupled between the plurality of stages, and providing a final switch coupled with a last stage. Each of the plurality of stages has a pair of first-in-first-out buffers (FIFOs) that store twice as many of the items as the pair of FIFOs in a previous stage. Each switch is for merging and sorting a first portion of the number of items from the pair of FIFOs in the previous stage based on the key and for providing the first portion of the number plurality of items to a first FIFO of the pair of FIFOs of the stage in order. Each switch is also for merging and sorting a second portion of the number of items the pair of FIFOs in the previous stage based on the key and providing the second portion of the number plurality of items to a second FIFO of the pair of FIFOs of the stage in order. The last switch is for merging and sorting a third portion of the number of items to provide the number of items in order.
摘要:
Methods and systems for data compression for storage of 3D comb filter data are disclosed. An incoming video signal may be band-limited during combing, where the incoming video signal may comprise a plurality of active and inactive video samples disposed within a plurality of video lines. The active video samples disposed within at least a portion of the plurality of video lines may be stored. The incoming video signal may be band-limited to 6.75 MHz, for example. Video samples utilized for eliminating edge effects may be stored. The number of video samples utilized for eliminating edge effects may be associated with an upsampling filter tap count. The active video samples may be combed. At least a portion of the plurality of video lines may be stored. The portion of the plurality of video lines may comprise active video lines.
摘要:
Systems and methods for generation of time-dependent control signals for video signals are provided. A system is provided that includes a set of microsequencers, a programmable combinational logic (PCL) module, shared memory, an arbiter for sharing of memory by the microsequencers, stacks containing registers for microsequencer control, and a control interface. The system can efficiently provide control signals for video signals, implement the MACROVISION copy protection process, and provide other value added features. The method includes accessing programs from shared memory, such that a set of microsequencers can generate flags. These flags are then processed to generate one or more control signals used to support the outputting of video signals including those requiring MACROVISION copy protection.
摘要:
A method for generating a video character in an on-screen display system. The method uses a HALT signal provided to the microprocessor which allows the microprocessor to finish executing its current instruction, but prohibits the microprocessor from beginning a next instruction. After a sufficient amount of time has passed to ensure that the microprocessor has completed its current instruction, an OSD interrupt signal is sent to the microprocessor instructing the microprocessor to begin OSD operations. Alternatively, the method uses a bus multiplexer which duplicates character data and sends the expanded data to a bus in order to enlarge characters displayed on the screen.