65results about How to "Avoid time difference" patented technology

A digital mixing system is provided in which a console section and an engine section that executes signal processing can operate consistently in accordance with control signals input to the console section and the engine section. The digital mixing system has a plurality of input signal systems and a plurality of output signal systems. Input signals from the input signal systems are subjected to a mixing process and the mixed signals are output to the output signal systems. In a console section, panel operating elements are used to input parameters relating to the mixing process, and a first control device generates a mixing control signal in response to operation of the panel operating elements or to a first control signal input via a first input terminal or a first communication interface, and outputs the mixing control signal to the first communication interface. In an engine section, a mixing processing device executes the above mixing process, and a second control device controls the mixing process executed by the mixing processing device in response to the mixing control signal input via a second communication interface and outputs a second control signal input via a second input terminal to the second communication interface. Communication lines connect between the first communication interface and the second communication interface.

There is provided an amplifier that measures a display delay time caused until a video is displayed actually after a video signal is generated, and sets automatically a delay time of an audio signal such that an audio synchronizes with this display. Test video data is stored in a memory 11. This test video data is video data that generates a clear change in luminance in such a manner that a screen is changed suddenly from deep black to pure white. This test video is output to a video display device 2 such as PDP, for example, and a delay time generated until the test video is displayed actually after this test video is output is measured. Since the luminance of the screen is changed suddenly when the test video is displayed actually, this change can be sensed by an optical sensor 20. The audio signal is delayed by setting this delay time in an audio signal processing portion 13, so that the video can synchronize with the audio.

The present invention relates to identification of base stations. The identification of wireless communication base stations in a region of high base station density is effected using a specific identification signal pattern transmitted by the base stations. In particular, each base station transmits a signal having a pattern with at least two time phase shifts relative to at least one time benchmark. The combination of these phase shifts allows identification of the transmitting base station. Since a plurality of phase shifts leads to a concomitantly larger number of phase shift combinations, the capacity to identify base stations is enlarged.