Abstract: A flip-flop includes a sense amplifier stage and a latch stage. The sense amplifier includes a first P type transistor and generates a first sensed signal and a second sensed signal in a first node and a second node, respectively. When the first P type transistor is turned on, the first node is connected to the second node. The latch stage generates a first output signal and a second output signal according to the first and the second sensed signals.

Abstract: A flip-flop includes a sense amplifier stage and a latch stage. The sense amplifier includes a first P type transistor and generates a first sensed signal and a second sensed signal in a first node and a second node, respectively. When the first P type transistor is turned on, the first node is connected to the second node. The latch stage generates a first output signal and a second output signal according to the first and the second sensed signals.

Abstract: The invention provides an electrolyte composition and dye-sensitized solar cell using the same. The electrolyte composition includes a diionic liquid of Formula: Z? (X—Y—X)Z?, wherein X includes ammonium, imidazolium, pyridinium or phosphonium, Y is (CH2)n, n is an integer of 1-16, Z is I, and Z? is I, PF6, BF4, N(SO2CF3), NCS or N(CN)2.

Abstract: A comparator includes a plurality of switches, a capacitor, an amplifier, and a latch. The switches provide an input signal during a first period and provide a reference signal during a second period. A first switch among the switches is composed of a first transistor. The capacitor receives the input signal during the first period and receives the reference signal during the second period. The amplifier is coupled to the capacitor for receiving a difference voltage between the input signal and the reference signal and amplifies the difference voltage during the second period to generate an amplified result. The determining circuit provides a digital signal according to the amplified result.

Abstract: A recording apparatus for optical data includes a photo detection IC for producing a plurality of phase signals; a plurality of sample/hold (S/H) circuits electrically connected to the photo detection IC; a plurality of limiter circuits electrically connected to the photo detection IC; a channel signal generator connected to the S/H circuits; and a level shift circuit connected to an output of the channel signal generator. The recording apparatus for optical data prevents the interference of servo signal during high speed operation and ensures normal operation of S/H circuits thereof.

Abstract: A sample-and-hold amplification circuit comprises an amplifier, a first sample-and-hold unit, and a second sample-and-hold unit. The amplifier has an input terminal and an output terminal. The first sample-and-hold unit is coupled to the input terminal and the output terminal. The second sample-and-hold unit is coupled to the input terminal and the output terminal. When the first sample-and-hold unit is arranged to perform a sampling operation, the second sample-and-hold unit performs a holding operation, and when the first sample-and-hold unit is arranged to perform the holding operation, the second sample-and-hold unit performs the sampling operation.

Abstract: A sample-and-hold amplifier is provided. The sample-and-hold amplifier comprises a sample-and-hold circuit and a buffer circuit. The sample-and-hold circuit receives an input signal and transmits the input signal to a first node according to a control signal. The buffer circuit is coupled between a supply voltage source and a ground and controlled by the first node to provide an output signal at an output node. The buffer circuit comprises a native MOS transistor coupled to the output node.

Abstract: A sample-and-hold amplification circuit comprises an amplifier, a first sample-and-hold unit, and a second sample-and-hold unit. The amplifier has an input terminal and an output terminal. The first sample-and-hold unit is coupled to the input terminal and the output terminal. The second sample-and-hold unit is coupled to the input terminal and the output terminal. When the first sample-and-hold unit is arranged to perform a sampling operation, the second sample-and-hold unit performs a holding operation, and when the first sample-and-hold unit is arranged to perform the holding operation, the second sample-and-hold unit performs the sampling operation.

Abstract: A detector for detecting information carried by a wobble signal having a sawtooth-like shape with a base frequency of fwob. The detector includes a first band-pass filter having a center frequency close to 2*fwob for filtering the wobble signal and generating a first filtered signal, a second band-pass filter having the center frequency close to fwob for filtering the wobble signal and generating a second filtered signal, first and second comparators for respectively comparing the first and second filtered signal with a reference voltage and generating first and second compared signals, a delay unit for delaying the second compared signal by a time period, and then outputting a delayed signal, and a sampling unit for sampling the first compared signal using the delayed signal as a sampling clock, and for outputting a sampled value representing the information carried by the sawtooth wobble.

Abstract: A recording apparatus for optical data includes a photo detection IC for producing a plurality of phase signals; a plurality of sample/hold (S/H) circuits electrically connected to the photo detection IC; a plurality of limiter circuits electrically connected to the photo detection IC; a channel signal generator connected to the S/H circuits; and a level shift circuit connected to an output of the channel signal generator. The recording apparatus for optical data prevents the interference of servo signal during high speed operation and ensures normal operation of S/H circuits thereof.

Abstract: A signal process device and method is provided to obtain a wobble signal from a set of retrieved signals. The signal process device comprises: an RF amplifier, band-pass filter, and a feedback control module. The RF amplifier generates a mix signal by synthesizing the set of retrieved signals reflected from an optical information recordable medium. The band-pass filter generates a transient-state wobble signal by performing band-pass filtering on the mix signal based on a target frequency. The feedback control module provides that target frequency by receiving the transient-state wobble signal and performing phase-locked loop and frequency dividing operations thereon. The feature and characteristic of the invention resides especially on repeatedly amending the target frequency via the feedback control module. In this setting, the band-pass filter is able to perform band-pass filtering on the mix signal based on the amended target frequency and obtain the desired wobbly signal.

Abstract: A wobbling signal reproduction device has a first low-pass filter, a second low-pass filter, a first auto gain control circuit, a second auto gain control circuit, a subtraction circuit unit and a band-pass filter. The band-pass filter is connected to an output terminal of the subtraction circuit unit to eliminate noise of reflected light beams due to a recording signal during the recording process. Thus, a satisfactory wobbling signal is available.

Abstract: A detector for detecting information carried by a wobble signal having a sawtooth-like shape with a base frequency of fwob. The detector includes a first band-pass filter having a center frequency close to 2*fwob for filtering the wobble signal and generating a first filtered signal, a second band-pass filter having the center frequency close to fwob for filtering the wobble signal and generating a second filtered signal, first and second comparators for respectively comparing the first and second filtered signal with a reference voltage and generating first and second compared signals, a delay unit for delaying the second compared signal by a time period, and then outputting a delayed signal, and a sampling unit for sampling the first compared signal using the delayed signal as a sampling clock, and for outputting a sampled value representing the information carried by the sawtooth wobble.