摘要:
A digital video communication device is provided. The digital video communication device includes a transmitter providing a spread-spectrum video signal including a predetermined frequency spread value and a frequency ratio and a receiver receiving the spread-spectrum video signal. The receiver includes a frequency synthesizer, a free-running clock generator configured to generate a free-running clock signal, wherein the free-running clock signal is used as a reference clock signal input to the frequency synthesizer. The receiver further includes a digital control logic circuit configured to separate the frequency ratio from the spread-spectrum video signal, and a line buffer coupled to the digital control logic circuit and the frequency synthesizer, the line buffer adjusting the frequency ratio and sending the adjusted frequency ratio to the frequency synthesizer, wherein the frequency synthesizer combines the free-running clock signal and the adjusted frequency ratio, and outputs a de-spread clock signal.
摘要:
An improved gene sequence optimization method, the systematic optimization method, is described for boosting the recombinant expression of genes in bacteria, yeast, insect and mammalian cells. This general method takes into account of multiple, preferably most or all, of the parameters and factors affecting protein expression including codon usage, tRNA usage, GC-content, ribosome binding sequences, promoter, 5′-UTR, ORF and 3′-UTR sequences of the genes to improve and optimize the gene sequences to boost the protein expression of the genes in bacteria, yeast, insect and mammalian cells. In particular, the invention relates to a system and a method for sequence optimization for improved recombinant protein expression using a particle swarm optimization algorithm. The improved systematic optimization method can be incorporated into a software for more efficient optimization.
摘要:
An output clock correction circuit (14) for correcting a frequency of an output clock in a receiving device (13) that receives data (16) and a time stamp component (18) includes an output clock feedback loop (20), a FIFO buffer (22) and a time stamp adjuster (24). The output clock feedback loop (20) adjusts a phase and/or a frequency of the output clock based at least partially on the time stamp component (18). The FIFO buffer (22) temporarily stores the data (16). The time stamp adjuster (24) selectively adjusts the time stamp component (18) based on a status of the FIFO buffer (22). In one embodiment, the status is based at least in part on an actual data level in the FIFO buffer (22). In another embodiment, the FIFO buffer (22) has a target data level range, and the time stamp adjuster (24) adjusts the time stamp component (18) when the actual data level in the FIFO buffer (22) is outside this range. The time stamp adjuster (24) can adjust the time stamp component (18) by an amount that is based on a calculation, or an amount that is determined from a lookup table.
摘要:
An output clock correction circuit (14) for correcting a frequency of an output clock in a receiving device (13) that receives data (16) and a time stamp component (18) includes an output clock feedback loop (20), a FIFO buffer (22) and a time stamp adjuster (24). The output clock feedback loop (20) adjusts a phase and/or a frequency of the output clock based at least partially on the time stamp component (18). The FIFO buffer (22) temporarily stores the data (16). The time stamp adjuster (24) selectively adjusts the time stamp component (18) based on a status of the FIFO buffer (22). In one embodiment, the status is based at least in part on an actual data level in the FIFO buffer (22). In another embodiment, the FIFO buffer (22) has a target data level range, and the time stamp adjuster (24) adjusts the time stamp component (18) when the actual data level in the FIFO buffer (22) is outside this range. The time stamp adjuster (24) can adjust the time stamp component (18) by an amount that is based on a calculation, or an amount that is determined from a lookup table.
摘要:
A method to provide 3D video display includes the steps of receiving 3D information from the auxiliary channel corresponding to a frame; and providing the 3D information to a user accessory having stereoscopic capabilities so that the user accessory operate according to the 3D information when the frame is displayed. Further provided is a video system to provide 3D video displays including a receiver to receive the 3D information corresponding to a frame from the auxiliary channel in a transmission link, and to provide the 3D information to a user accessory as the frame is displayed. A 3D video display setup is also provided including a video system as above; a receiver having a display; and a clock to synchronize the display with a user accessory; and a user accessory having stereoscopic capabilities.
摘要:
An improved gene sequence optimization method, the systematic optimization method, is described for boosting the recombinant expression of genes in bacteria, yeast, insect and mammalian cells. This general method takes into account of multiple, preferably most or all, of the parameters and factors affecting protein expression including codon usage, tRNA usage, GC-content, ribosome binding sequences, promoter, 5′-UTR, ORF and 3′-UTR sequences of the genes to improve and optimize the gene sequences to boost the protein expression of the genes in bacteria, yeast, insect and mammalian cells. In particular, the invention relates to a system and a method for sequence optimization for improved recombinant protein expression using a particle swarm optimization algorithm. The improved systematic optimization method can be incorporated into a software for more efficient optimization.
摘要:
A digital video communication device is provided. The digital video communication device includes a transmitter providing a spread-spectrum video signal including a predetermined frequency spread value and a frequency ratio and a receiver receiving the spread-spectrum video signal. The receiver includes a frequency synthesizer, a free-running clock generator configured to generate a free-running clock signal, wherein the free-running clock signal is used as a reference clock signal input to the frequency synthesizer. The receiver further includes a digital control logic circuit configured to separate the frequency ratio from the spread-spectrum video signal, and a line buffer coupled to the digital control logic circuit and the frequency synthesizer, the line buffer adjusting the frequency ratio and sending the adjusted frequency ratio to the frequency synthesizer, wherein the frequency synthesizer combines the free-running clock signal and the adjusted frequency ratio, and outputs a de-spread clock signal.
摘要:
System and method for implementing a self-adjusting audio clock in an audio receiver comprising an audio data buffer for buffering data received from a transmitter are described. In one embodiment, the system includes an audio clock recovery circuit for recovering an audio clock signal from a reference clock signal received from the transmitter, wherein the audio clock is provided to the audio data buffer for use in reading data therefrom. The system further includes an adjustment circuit for providing an adjustment signal to the audio clock recovery circuit in accordance with a status of the audio data buffer. Responsive to the status of the audio data buffer indicating that the audio data buffer is approaching overflow, the adjustment signal provided to the audio clock recovery circuit causes an increase in the frequency of the audio clock signal. Responsive to the status of the audio data buffer indicating that the audio data buffer is approaching underflow, the adjustment signal provided to the audio clock recovery circuit causes a decrease in the frequency of the audio clock signal.