Patent ID: 8306770
Filing Date: 2012-11-06
Classification: H04N

Abstract:
1. A method for testing output of an electrical device, comprising: making a device being tested transmitting a first signal to a test platform through a channel being tested; comparing a signal received through the channel being tested by the test platform with the first signal to determine if the received signal corresponds to the first signal; determining that the channel being tested is normal when the received signal corresponds to the first signal; determining that the channel being tested is abnormal when the received signal does not correspond to the first signal; making the test platform transmitting an initial signal to the device being tested, such that the device being tested starts to transmit the first signal to the test platform through the channel being tested; and when no signal was received through the channel being tested by the test platform in a period of time since the initial signal was transmitted, determining that connection between the device being tested and the channel being tested or connection between the channel being tested and the test platform is abnormal.