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Data transfer device and camera

A data transmission and data signal technology, applied in the direction of synchronization device, digital transmission system, electrical digital data processing, etc., can solve the problem that it is difficult to deal with the unstable factors of digital data

Inactive Publication Date: 2010-12-08
株式会社尼廉制度
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the prior art described above, there is room for improvement in that it is difficult to deal with unstable factors that become a problem in the high-speed transmission of digital data.

Method used

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  • Data transfer device and camera
  • Data transfer device and camera
  • Data transfer device and camera

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0023]

[0024] figure 1 It is a schematic diagram showing a configuration example of the data transmission device of the first embodiment. exist figure 1 2 shows a configuration example in which the imaging element 12 of the camera is used as an output device and the signal processing circuit 13 of the camera is used as an input device.

[0025] The imaging element 12 of the first embodiment has a light receiving surface on which a plurality of light receiving elements are arranged two-dimensionally, and outputs an image signal of a subject image formed on the light receiving surface by an imaging optical system (not shown). In addition, the imaging element 12 has an A / D conversion circuit (not shown) on a chip, and outputs a digital data signal from an output terminal of the imaging element 12 .

[0026] Here, in the imaging element 12 of the first embodiment, one end of the two signal lines (DATA0, DATA1) for outputting image signals in parallel is connected to one end ...

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PUM

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Abstract

Provided is a data transfer device which transfers a digital data signal in synchronization with a clock signal. The data transfer device includes a delay unit, a measurement unit, and a control unit. The delay unit controls a delay amount assigned to the data signal. The measurement unit acquires an acquisition timing of the data signal outputted from the delay unit by using test data and a clock signal which are transmitted at least once prior to the data communication. The control unit decides a delay amount for the data signal upon data communication according to the aforementioned acquisition timing or a stored timing.

Description

technical field [0001] The present invention relates to a data transfer device suitable for high-speed transfer of digital data between electronic devices or between semiconductor elements and its peripheral technology. Background technique [0002] In the past, in the design of electronic equipment for the purpose of high-speed transmission of digital data, the impedance control of the transmission path, the selection of materials such as equal-length wiring, and printed circuit boards, and then the simulation of signal waveforms were performed to ensure the effective period of data. (eye hole pattern). [0003] In particular, in the case of a parallel system in which data is transmitted using a plurality of signal lines, when the transmission speed is on the order of gigahertz, there is a limit to countermeasures such as only equal-length wiring. In addition, due to jitter (data signal It is also known that it is difficult to perform stable high-speed transmission due to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/42H04L7/00
CPCG06F13/4291H04N7/24H04L7/0041
Inventor 小山胜田村勉池谷美香西宫由美子
Owner 株式会社尼廉制度