Asia Optical Co., Ltd.

Cuttway Products Co.,ltd.

Yi-Yang Chang

Pi-Yao Chien

Tzu-Yi Lin

An electric knife includes a cutter blade, a handle, and a drive unit and a driven unit mounted inside the handle. The drive unit includes a first movable sleeve. The driven unit includes a second movable sleeve. The cutter blade is set on the second movable sleeve. The drive unit and the driven unit are connected through a link, so that the drive unit can drive the second movable sleeve of the driven unit and the cutter blade to reciprocate along an axis.

Electric knife

A transceiver module including an adaptor and a PCB is provided. The PCB, connected with the adaptor, has a first signal layer, a second signal layer and a singular ground layer wherein the singular ground layer is set between the first signal layer and the second signal layer. The first signal layer includes a first transmitter circuit region and a first receiver circuit region. The second signal layer includes a second transmitter circuit region and a second receiver circuit region. The singular ground layer includes a ground portion of a third receiver circuit electrically connected with the ground signals of the first and the second receiver circuit region. Beside, the projection area of the singular ground layer onto the first signal layer substantially covers the first transmitter the first receiver circuit region. The ground portion of the third receiver circuit is electrically connected with a ground of the adaptor.

Transceiver module and PCB structure thereof

A light detecting circuit includes a power source circuit, an optoelectronic component, a switch and a Trans Impedance Amplifier (TIA) circuit. The power source circuit provides an electric signal. When the optoelectronic component is biased at a bias voltage, the optoelectronic component generates a corresponding current according to the received light density. The switch has a trigger receiver. After the trigger receiver receives a trigger signal, the switch turns on and the optoelectronic component is biased at the bias voltage. The TIA circuit transforms the corresponding current to a corresponding voltage and then calculates the corresponding voltage to obtain the light density.

Light detecting circuit, laser distance measuring circuit and light detecting method

A signal detector comprises a signal translator, a data signal detector, a clock signal detector and an inputting control circuit for detecting abnormal clock and data signals. The signal translator respectively converts differential data signals and differential clock signal into a single data signal and a single clock signal. The data signal detector outputs a data detecting signal according to the single data signal. The clock signal detector outputs a clock detecting signal according to the single clock signal. The interrupting control circuit receives the data detecting signal and outputs a shutdown signal when the single data signal is at high voltage level over a predefined ratio. The interrupting control circuit also receives the clock detecting signal and outputs the shutdown signal when the single clock signal abnormally disappears.

Signal detector

A method for making a laser driver circuit for burst mode is described. The method includes the following steps: First, a continuous mode laser driver circuit is selected, the chip having a temperature compensation output, a bias current setting input, and a reference current setting input. Next, the temperature compensation signal is converted to a reference current setting signal via a first bias adjustment circuit, and the reference current setting signal is input to the reference current setting input. Then, the bias current setting input is connected to ground via a second bias adjustment circuit. The reference current setting signal automatically adjusts the high level and the low level of the eye diagram of the laser according to the environmental temperature, so that the high level and the low level are kept stable to reduce the bit error rate in transmission.

Laser driver circuit for burst mode transmission and fabrication method thereof

A laser driver circuit for burst mode transmission is equipped in a transmitter at a client side within a P2MP (Point to Multipoint) optical network. The laser driver circuit utilizes a laser driver chip for a continuous mode. The selected laser driver chip is capable of working under an open-loop situation. A burst signal containing time slot information is fed to the switch connected to the laser driver chip. If the burst signal is enabled, a resistor of a predetermined value is connected to the laser driver chip via the switch so that normal driving current is generated for data transmission. If the burst signal is disabled, another resistor whose value is greater than the predetermined value is connected to the laser driver chip via the switch so that no or almost no driving current is generated, thereby avoid the signal collision problem of the channel shared by multiple clients.

Laser driver circuit for burst mode transmission

A method for making a laser driver circuit for burst mode is described. A continuous mode laser driver circuit can be used in burst mode transmission system by using the method. The method is described as follows. First, a continuous mode laser driver chip is selected, the chip has a temperature compensation output and a pulse width adjustment input. Next, the temperature compensation signal from the temperature compensation output is converted to a pulse width adjustment signal using an eye diagram adjustment circuit, and the pulse width adjustment signal is sent to the pulse width adjustment input. The pulse width adjustment signal automatically adjusts the cross points of the eye diagram of the laser according to the environmental temperature, so that the cross points are sustained at a predetermined level to reduce the Bit Error Rate.

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Taichung, Taiwan

Yi-Yang Chang