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1039 results about "Data translation" patented technology

Adjustable serial-to-parallel or parallel-to-serial converter

A clock synchronizer may include two programmable counters, one which may be programmed with a bit-rate value so that it generates a signal approximately matching the bit rate of the asynchronous data signal, and the other programmed with a phase-delay value so that it generates a sample clock signal at a phase delay from the signal generated by the first counter. The phase of the sample clock may be adjusted by restarting the counters in response to a transition on the asynchronous data signal. Data may be supplied to a serial-to-parallel converter including a first shift register configured to shift a data word in serially and output the data word in parallel and a second shift register configured to track when the data word had been completely shifted into the first shift register and to cause the data word to be outputted in parallel from the first shift register so that a new word may be shifted into the first shift register. A status value may be loaded into the second shift register so that when the last bit is converted in the first shift register, the second shift register shifts out a conversion completed indication. The bit length to be converted may be changed by loading a different status value into the second shift register. This same technique may be employed in a parallel-to-serial data converter or in a general data converter that may convert from serial-to-parallel or parallel-to-serial according to a conversion-type signal.
Owner:NATIONAL INSTRUMENTS

Two-dimensional code coding method, two-dimensional code decoding method and two-dimensional code print

ActiveCN104143109AHigh coding densityAdapt to the needs of different practical applicationsRecord carriers used with machinesSensing by electromagnetic radiationComputer hardwareCoding decoding
The invention discloses a two-dimensional code coding method, a two-dimensional code decoding method and a two-dimensional code print. The two-dimensional code coding method includes the steps that a coding mode of input data is determined; the input data are converted to data code word streams; the error correction level, the line number M and the column number N are determined; error correction code words are generated and added to the position behind the data code word streams; a horizontal cutting line and a vertical cutting line of a two-dimensional code are generated, and the area defined by an outer frame of the two-dimensional code is cut into coding area blocks through the horizontal cutting line and the vertical cutting line; data code words to which the error correction code words are added are added to the coding area blocks, The two-dimensional code decoding method includes the steps that the two-dimensional code is scanned and a binary image is generated; a boundary image is generated; a frame image is generated; the coordinates of the vertexes of the coding area blocks are distinguished; the data code word streams are obtained; error correction is conducted on decoding data code word streams; the data are restored. The two-dimensional code is printed on the print. According to the two-dimensional code coding method, the two-dimensional code decoding method and the two-dimensional code print, high coding density is achieved, the length-width ratio of the two-dimensional code can be adjusted by adjusting the line number and the column number of the two-dimensional code, and therefore the different requirements of practical application can be met.
Owner:SHENZHEN YLINK COMPUTING SYST
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