Universal serial bus interface bridge of digital camera

A universal serial bus, digital camera technology, applied in the direction of electrical digital data processing, instruments, etc., can solve the problems of restricting the storage capacity of digital cameras, inability to directly connect USB mass storage devices of digital cameras, and inconvenient storage capacity, etc. The burden of going out, avoiding the limitation of shooting capacity, the effect of reducing demand

Inactive Publication Date: 2004-11-03
庞志平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since a large number of USB mass storage devices such as U disks/USB hard disks are also USB slave devices, this makes it impossible for digital cameras and USB mass storage devices such as U disks/USB hard disks to be d...

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  • Universal serial bus interface bridge of digital camera
  • Universal serial bus interface bridge of digital camera
  • Universal serial bus interface bridge of digital camera

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Embodiment Construction

[0009] Such as figure 1 As shown, the digital camera USB bridge of the present invention is composed of three parts, namely the central controller 1, the digital camera interface 2 and the hard disk interface 3. The central controller 1 is respectively connected with the digital camera interface 2 and the hard disk interface 3, the digital camera interface 2 is externally connected with a digital camera, and the hard disk interface 3 is externally connected with a USB mass storage device.

[0010] The digital camera interface 2 is responsible for detecting the connection state of the digital camera, implementing a USB bus interface (USB Bus Interface), and communicating with the digital camera under the control of the central controller 1.

[0011] The hard disk interface 3 is responsible for detecting the status of the USB mass storage device (USB mass storage device), realizing the USB bus interface, and under the control of the central controller 1, and the USB mass storage de...

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Abstract

The USB bridge for digital camera includes CPU, digital camera interface and hard disc interface. The digital camera interface is used in connecting with digital camera for detecting the connection state of digital camera, realizing USB interface and communicating with the digital camera under the control of the CPU. The hard disc interface is used to connect great capacity USB memory device for detecting the state of the great capacity USB memory device, realizing USB interface and communicating with the great capacity USB memory device under the control of the CPU. The CPU is used in realizing USB protocol stack, data transmission and man-machine interface. Using standard U disc as outer storing device for digital camera can eliminate the limitation of digital camera in memory capacity.

Description

Technical field [0001] The invention relates to a digital camera USB bridge. Background technique [0002] The USB (Universal Serial Bus) interface is an asymmetric communication protocol standard, divided into master / slave interfaces. The USB interface on the current digital camera is generally provided as a USB slave device. This makes the connection between the digital camera and the computer very convenient. However, because a large number of USB mass storage devices such as U disks / USB hard disks are also USB slave devices, this makes it impossible to directly connect digital cameras and USB mass storage devices such as U disks / USB hard disks. Therefore, the storage capacity of the digital camera is restricted, especially for use occasions that require long-term shooting such as traveling, the lack of storage capacity obviously brings a lot of inconvenience to people. Summary of the invention [0003] The purpose of the present invention is to provide a digital camera USB b...

Claims

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Application Information

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IPC IPC(8): G06F13/14
Inventor 庞志平
Owner 庞志平
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