Patent ID: 7639276
Filing Date: 2009-12-29
Classification: H03J,H04N

Abstract:
1. A simulation system for testing performances of television (TV) tuners attached to a plurality of computers, the simulation system comprising: a plurality of players, each for transmitting an original signal comprising audio and video data formatted in a corresponding data format; a plurality of frequency adjusters, each being connected to one of the players, for receiving a corresponding original signal from the player and changing the original signal into an adjusted signal having a fixed frequency; at least one frequency mixer connected to the frequency adjusters, for combining all the adjusted signals into an aggregated signal; and at least one hub connected to the frequency mixer, for distributing the aggregated signal to each of the computers via a coupled TV tuner respectively; wherein, each of the computers is used for decoding various TV programs at different signal frequencies in an emulated TV channel, and for generating a test report on the performance of the TV tuner.