Abstract: A circuit and a method for using the circuit to provide synchronization between a first video signal and a second video signal are provided, comprising a circuit to capture a first video signal, a circuit to measure the timing format of the first video signal including an input clock and count input Vsync pulses, a circuit to measure a phase difference between the first video signal and the second video signal, a circuit to generate an output video signal comprising a number of output Vsync pulses and an output clock, and a PLL circuit to control the output clock period as a constant ratio of the input Vsync period, and maintain a constant number of output clock periods per a number of input clock periods. Also provided is a system to perform the method as above using the circuit as above, maintaining a constant ratio between the output clock period and a number of input clock periods.

Abstract: A circuit and a method for using the circuit to provide synchronization between a first video signal and a second video signal are provided, comprising a circuit to capture a first video signal, a circuit to measure the timing format of the first video signal including an input clock and count input Vsync pulses, a circuit to measure a phase difference between the first video signal and the second video signal, a circuit to generate an output video signal comprising a number of output Vsync pulses and an output clock, and a PLL circuit to control the output clock period as a constant ratio of the input Vsync period, and maintain a constant number of output clock periods per a number of input clock periods. Also provided is a system to perform the method as above using the circuit as above, maintaining a constant ratio between the output clock period and a number of input clock periods.

Abstract: A connector that mechanically connects and provides power to two or more telecommunication devices in series, for example a phone and an expansion module or accessory device, from a single or multiple power source is provided. In one embodiment, the connector includes a support body and a pair of outwardly extending projections for connection to a base and expansion module.

Abstract: Disclosed is an optical sensing device including a source unit providing a beam of light with continuously modulated phase retardation between p- and s-polarization components of the light by employing a LCM; a reference unit receiving a first part of the light to provide a reference signal; a SPR sensing unit receiving a second part of the light to induce a phase retardation change between the p- and s-polarization components due to SPR associated with a sample; a probe unit receiving the light after SPR to provide a probe signal; and a detection unit connected to the reference unit and the probe unit to detect characteristics of the sample by comparing the reference signal with the probe signal. By using active phase modulation technologies and differential phase measurement, it is possible to fulfill chemical and biological detection.