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Delay apparatus for regulating phase under standard moving video specification

A delay device, image technology, applied in the direction of single output arrangement, etc., can solve the problem of high cost

Inactive Publication Date: 2011-06-29
ALTEK CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is that the known technology uses a phase-locked loop under the SMIA specification to lock data in a very short time using a setup-hold mechanism at an extremely fast transmission rate, and uses the rising edge of the frequency to carry data , however, using a phase-locked loop is not only costly, but also requires a frequency signal to activate the phase-locked loop within a lock-in time

Method used

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  • Delay apparatus for regulating phase under standard moving video specification
  • Delay apparatus for regulating phase under standard moving video specification
  • Delay apparatus for regulating phase under standard moving video specification

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Embodiment Construction

[0047] In order to transmit data at a high speed and stably under the SMIA framework, as described in the known technology, the frame start code (SOF) at the start position of the frame and the frame end code (EOF) at the end position of the frame standardize the image or It is other forms of data, and it needs to be adjusted in a very short time to lock the data under a specific frequency, as shown in Figure 3. The frequency schematic diagram of the setup-hold (setup / hold) time, in this embodiment, the data The rising edge (rising edge) of the frequency signal needs to be locked, so a stable phase relationship needs to be maintained within the setup-hold time before and after the rising edge.

[0048] The preferred embodiment of the above-mentioned delay multiplexer used in the present invention is composed of a plurality of delay cells (delay cells) distributed in the circuit board, especially in chip (IC) design, such as VLSI ( VLSI) design, through the software-assisted de...

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Abstract

The invention discloses a deferred mount used for adjusting phase position under standard mobile imaging architecture, in particular a deferred mount used for adjusting the phase position of frequency signals bearing data under standard mobile imaging architecture (SMIA). The embodiment of the invention at least comprises a plurality of delay units which are arranged on a circuit board after being designed by automatic wiring layout, and one or a plurality of delay multiplexers which is / are electrically connected to each delay unit; wiring selection of the delay multiplexers is controlled by pin selecting, and a plurality of types of delay time are generated, thus adjusting the phase relationship between data and frequency and replacing the mode of generally using phase-locked loops.

Description

technical field [0001] The invention relates to a delay device for phase adjustment under standard mobile image architecture specifications, in particular to a plurality of delay elements designed in an image processing chip, which are selected by a multiplexer to accurately lock the phase. Background technique [0002] With the rapid growth of mobile phones or other portable devices with camera functions, standard mobile imaging architecture (SMIA, Standard Mobile Imaging Architecture) can be used to standardize the standard for image transmission on mobile devices. This standard mobile imaging architecture is a Especially for the image processing architecture of mobile devices, a better processing effect is obtained between the SMIA-compliant sensor (SMIA-compliant sensor) and the connected SMIA-compliant host (SMIA-compliant host), which standardizes the device outer cover (housing ), mechanical interconnection, functionality, register set and interface, etc. [0003] Tw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03K5/14H04N25/00
Inventor 张庆彦王文彬
Owner ALTEK CORP