Portable HDMI CEC automatic testing device and testing method thereof

A technology of HDMI interface and tester, which is applied in the field of automatic tester and its test, can solve the problems of expensive, bulky, complicated connection, setting and testing, etc., and achieve convenient operation, high production efficiency, and complete automation of the testing process Effect

Inactive Publication Date: 2010-11-24
广东欧加控股有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Professional CEC test equipment, with complete functions, but bulky, expensive, and the connection, setting and testing are complicated, suitable for professional engineers to develop and debug products in the product design stage

Method used

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  • Portable HDMI CEC automatic testing device and testing method thereof
  • Portable HDMI CEC automatic testing device and testing method thereof
  • Portable HDMI CEC automatic testing device and testing method thereof

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Embodiment Construction

[0018] The central idea of ​​the present invention is to overcome the deficiencies of the prior art and provide a portable HDMI CEC automatic tester and its test method, which makes the whole CEC function test process simple and convenient to operate, with low cost and high production efficiency. The following will describe in detail with reference to the accompanying drawings in conjunction with the embodiments, so as to further explain the technical features and advantages of the present invention.

[0019] The principle block diagram of the present invention is as figure 1 As shown, a portable HDMI CEC automatic tester includes a power supply circuit and a micro control unit MCU, the micro control unit MCU is respectively connected to the HDMI interface and the LED status indication circuit, and the power supply supplies power to the MCU and the LED status indication circuit. The MCU detects the +5V voltage on the HDMI interface and the signals of the two pins of HPD, and c...

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Abstract

The invention discloses a portable HDMI CEC automatic testing device and a testing method thereof. A testing device circuit comprises a power resource and a micro control unit MCU, wherein the micro control unit MCU is respectively connected with an HDMI interface and an LED status indicating circuit, and the power resource supplies electricity to the MCU and the LED status indicating circuit. The MCU detects +5V on the HDMI interface and hot plug detects (HPD) signals of the two pins, is communicated with a test object through a bus of a direct digital control system DDC and a bus of a CEC, automatically completes the test of the CEC function of the HDMI equipment, and displays a test result through the LED indicating circuit, wherein the LED status indicating circuit consists of a luminous diode. The invention is simple in structure, convenient in operation, low in cost, high in production efficiency, very small in whole volume due to few devices, convenient for the product manufacture of the quality test, completely automatic in the whole test process, simple, convenient and practical.

Description

technical field [0001] The invention relates to an automatic tester and a testing method thereof, in particular to a portable HDMI CEC automatic tester and a testing method thereof. Background technique: [0002] High-definition multimedia interface HDMI (abbreviation of High Definition Multimedia Interface) is the industry's first support for uncompressed all-digital audio / video interface, HDMI transmits high-definition, all-digital audio and video content in one cable, extremely Greatly simplifies wiring and provides consumers with a high-quality home theater experience. Consumer Electronics Control CEC (abbreviation for Consumer Electronic Control) is a part of the HDMI specification. It uses a signal line in the HDMI interface to enable players, power amplifiers, and HDMI adapters connected to each other through HDMI cables. Or distributors, display devices and other consumer electronics products form a network that can communicate with each other and control each other...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N17/00H04N5/765G01R31/00
Inventor 林尚波
Owner 广东欧加控股有限公司
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