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Dual-camera structure based on same DVP (Digital Version Port) data bus

A data bus and dual-camera technology, applied in the field of image and video, can solve the problems that the camera cannot meet the functions of handheld electronic devices, cost increase, and volume loss, etc., to reduce the time cost of research and development, reduce hardware costs, and facilitate development and manufacturing Effect

Inactive Publication Date: 2010-11-03
SHANGHAI GANTU PHOTOELECTRIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, a single camera can no longer meet the functional applications of handheld electronic devices like mobile phones, especially the current 3G network has become a future development trend. The main camera can meet the daily shooting needs, and the design of the auxiliary camera for video calls has become the mainstream.
Technically, dual cameras require two sets of data connections and control interfaces
Therefore, either two DSPs are required for follow-up, or a DSP with two built-in camera interfaces is selected; either the volume is lost, or the cost is increased

Method used

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  • Dual-camera structure based on same DVP (Digital Version Port) data bus
  • Dual-camera structure based on same DVP (Digital Version Port) data bus
  • Dual-camera structure based on same DVP (Digital Version Port) data bus

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Embodiment Construction

[0025] refer to figure 1 As shown, the figure includes: main camera 100; auxiliary camera 200; main camera power supply module 300; auxiliary camera power supply module 400; dual camera interfaces 500 of the same DVP data bus. (In the data connection of the dual-camera interface, it includes: 8 / 10-bit DVP data lines 101 and 102; vertical synchronization VSYNC501; horizontal synchronization HREF502; pixel clock PCLK503; main and auxiliary camera dormancy control pins PWDN1, PWDN2; shared serial camera Clock line SIC_C of the control bus (SCCB); data line SIC_D).

[0026] figure 2 It is a schematic diagram of the dual camera software timing design based on the same DVP data bus of the present invention.

[0027] The figure includes:

[0028] System restart clock (Reset) 100; main and auxiliary camera power sequence (DOVDD; AVDD; DVDD); main camera dormancy control pin (PWDN1); sub-camera dormancy control pin (PWDN2); shared serial camera control bus SIC_C and SIC_D; Shared ...

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Abstract

The invention provides a dual-camera structure based on the same DVP (Digital Version Port) data bus, belonging to the technical field of image video and relating to a connecting scheme of dual cameras on the basis of the same DVP (Digital Version Port) data bus in a mobile phone. By the invention, the traditional scheme of a single camera into and a single data processing chip can be updated only by slightly modifying corresponding hardware and adding corresponding software, and thus, the hardware cost and the time cost for the research and the development of the dual cameras can be greatly reduced. The invention has simple structure and low cost; and by matching with the corresponding software, the development and the manufacture become very convenient.

Description

technical field [0001] The present invention relates to a set of technical proposals for combining software and hardware in the field of handheld electronic devices, belonging to the field of image and video technology, and more specifically, to a dual camera based on the same DVP (Digital Video Port) data bus in a mobile phone. connection scheme. Background technique [0002] At present, a single camera can no longer meet the functional applications of handheld electronic devices like mobile phones, especially the current 3G network has become a future development trend. The main camera can meet the daily shooting needs, and the design of the auxiliary camera for video calls has become the mainstream. . Technically, dual cameras require two sets of data connections and control interfaces. Therefore, either two DSPs are required for follow-up, or a DSP with two built-in camera interfaces is selected; either the volume is lost, or the cost is increased. Contents of the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225H04N7/14
Inventor 王海菱
Owner SHANGHAI GANTU PHOTOELECTRIC TECH
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