Abstract: A liquid crystal polymer, composition, liquid crystal polymer film, laminated material and method of forming liquid crystal polymer film are provided. The liquid crystal polymer includes a first repeating unit, a second repeating unit, a third repeating unit, and a fourth repeating unit. The first repeating unit has a structure of Formula (I), the second repeating unit has a structure of Formula (II), the third repeating unit has a structure of Formula (III), and the fourth repeating unit has a structure of Formula (IV), a structure of Formula (V) or a structure of Formula (VI) wherein A1, A2, A3, Z1, R1, R2, R3 and Q are as defined in the specification.

Abstract: A laser inspection system is provided. A laser source emits a laser with a first spectrum and the laser is transmitted by a first optical fiber. A gain optical fiber doped with special ions is connected to the first optical fiber, and a light detector is provided around the gain optical fiber. When the laser with the first spectrum passes through the gain optical fiber, the gain optical fiber absorbs part of the energy level of the laser with the first spectrum, so that the laser with the first spectrum is converted to generate light with a second spectrum based on the frequency conversion phenomenon. The light detector detects the intensity of the light with the second spectrum, so that the power of the laser source can be obtained.

Abstract: A device for controlling and integrating multiple types of signal transmission cables includes a multi-signal transmitter module and a multi-signal receiver module. The multi-signal receiver module is connected to the multi-signal transmitter module via a network cable for receiving a first and a second differential signal sequentially transmitted by the multi-signal transmitter module. The multi-signal receiver module also performs a differential solution process for the received first and second differential signals, so as to get a first control instruction and a video signal, which are then sequentially transmitted to at least one electronic device for the same to execute a corresponding operation. With these arrangements, multiple signals can be transmitted and received with reduced quantity of cables, and the controlling and integrating device can be installed and maintained with reduced labor cost.

Abstract: A power-saving audio/video control device determines whether to power on/off a public broadcasting system according to a connecting status of a multimedia device through a power-saving control. The multimedia device provides an audio/video signal to be played by the public broadcasting system. The multimedia device includes an input module, a detection unit and a control unit. The audio/video control device plugs and installs the multimedia device directly, and the detection unit detects whether the input module is connected to the multimedia device, so that the control unit controls the power ON/OFF of the public broadcasting system and selects a source port automatically to achieve the effects of providing a plug and play function, turning on or off the power automatically, saving energy, reducing the labor cost, enhancing the service life, automatically switching the audio/video, and providing a convenient operation.

Abstract: A control system with bidirectional selection includes an audio/video receiving device and an audio/video transmission device. The audio/video receiving device serves to transmit an input command to a signal processing module via a first control interface for the signal processing module to generate a control signal and transmit the control signal to a detection module. According to the received control signal, a second central processor generates a switch control signal and transmits the switch control signal to an audio/video switch. According to the switch control signal, the audio/video switch selects the audio/video signal. Accordingly, the audio/video signal can be selected at both the transmission terminal and the receiving terminal.

Abstract: An energy-saving control system for automatically turning on/off electronic device is disclosed. The control system includes at least one front end device for transmitting an A/V signal, a control device, and at least one back end device. The control device detects whether the at least one front end device transmits any A/V signal, and automatically controls on/off of power supply to an A/V control unit in the control device and/or the at least one back end device, so as to effective achieve energy saving.

Abstract: An automatic video gain adjustment method in which an automatic gain equalizer is used. The method includes steps of: using a processor to read and analyze a video signal and compare the video signal with a standard value to judge whether the video signal matches the standard value; using a gain regulator to automatically adjust the amplitude of the video signal in case the video signal fails to match the standard value, the gain regulator then generating an adjusted video signal; and using the processor to receive the adjusted video signal and transmit the adjusted video signal to a remote-end receiving device. By means of the automatic video gain adjustment method, the video signal can be automatically and more conveniently adjusted to match the standard value.

Abstract: An automatic video delay correction method in which an automatic delay equalizer is used. The method includes steps of: using a processor to read a video signal and analyze and judge whether the back porch of the three primary color signal in a received video signal is the same; if not, using a delay regulator to automatically adjust the delay time of any two leading or trailing primary color signal to generate an adjusted back porch of two primary color signal; using the processor to compare the adjusted back porch of the two primary color signal with the back porch of a maximum delay time to judge whether the adjusted back porch is the same as the back porch of the maximum delay time; and if so, using the processor to generate an adjusted video signal and transmit the adjusted video signal to a remote-end receiving device.