32results about How to "No increase in area" patented technology

The invention relates to a double-sampling modulator applicable to incremental sigma delta ADC (analog to digital converter) in the field of high precision analog to digital converters. A circuit structure of a complete floating double linear integrator is used, and two set of sampling capacitors and four reset switches are used. The double-sampling modulator has the advantages that power efficiency is enhanced, the problem of linearity deterioration caused by mismatch of the capacitors is solved, and chip area is not increased.

The present invention is provided with a plural cell including a transistor pair. The plural cells are arranged at equal intervals so as to configure a cell group. A inter-cell distance between a transistor in one of the cell and a transistor the other cell in each of adjacent cells in the cell group is equal to a intra-cell distance between one of the transistor and the other transistor in the transistor pair.

An output adjustable band-gap reference source circuit is characterized by comprising: a high-gain operational amplification circuit; a voltage generation circuit independent of temperature and power source connected with the input end and output end of the high-gain operational amplification circuit by nodes, so as to implement output clamping effect; a start circuit, the output of which is connected to the node of the voltage generation circuit independent of temperature and power source to prevent the voltage generation circuit independent of temperature and power source entering a dead region; an output regulation circuit, the input of which is connected to the voltage generation circuit independent of temperature and power source, thereby to implement output clamping effect, and the output is the output of the whole band-gap reference source circuit.

The invention relates to a high-order sigma delta noise rectification interpolator used in direct digital frequency synthesizer. The invention comprises a rectification accumulator (22), a delay circuit (23) and a phase accumulator (20). The external N bit frequency is input into the phase accumulator (20) whose output is connected to the rectification accumulator (22); the output of rectification accumulator (22) is used as the high p bits of the phase of sine or cosine and as the lower N-p bits of cut section, to connect the delay circuit (23) to process the transmission function as 1-(1-Z-1)n, to be output to the rectification accumulator (22); the output of rectified phase is connected to the sine or cosine look-up list (30) whose output via the digital / analogue converter (40) and the low-pass filter (50) is transformed to the sine or cosine wave with lower noise.

A hydraulic disc brake device includes a cover, a hydraulic unit, an oil tube and a disc brake unit. The cover includes at least one accommodating space, at least one oil route, a proximal end and a distal end. The distal end towards a moving direction of the bicycle. The hydraulic unit includes a hydraulic cylinder and a piston. The hydraulic cylinder is assembled in the accommodating space. The piston is assembled in the hydraulic cylinder for controlling a pressure of the oil route. The disc brake unit is connected with the oil tube and controlled by a pressure of the oil tube.

This invention relates to a method and apparatus for displaying information. Wherein, setting dual-shaft accelerometer in the display device; obtaining the display screen displacement according to the upward acceleration vectors of two meter shafts determined by itself; correcting the current information area; displaying the corrected information. Besides, the device comprises a display buffer module, a display control module, a display screen module, an accelerometer module, and a central processing module. This invention keeps the display information stable to human eyes position in space, and improves the information display stability and distinguishability.

The invention discloses an LC oscillator magnetosensitive biosensor based on the on-chip switched capacitor in-situ self-calibration technology, which belongs to the technical field of biosensors. The sensor includes: n LC oscillator sensing units on a CMOS chip, n LC oscillator in-situ self-calibration switch capacitor, power management module, buffer, encoder / decoder, mixer, low-pass filter, and off-chip frequency counter; among them, n switch capacitors and n LC oscillators Sensor sensing units form a sensor microarray, n is a positive integer; the output of each LC oscillator sensing unit is connected to a switched capacitor. On the basis of achieving a good noise suppression effect, the chip area is saved, the cost and complexity are reduced, and the detection sensitivity is improved. After tape-out experiments, all indicators of biochips using this in-situ calibration technology have reached the highest level of similar technologies.

The present invention provides a low-voltage reset circuit, including: a current source, a first resistor, a second resistor, a third resistor, a fourth resistor, a comparator and a voltage-controlled resistor; a current source, a first resistor, a voltage-controlled resistor and a second The resistors are connected in series in sequence, connected between the power supply voltage and the ground; the third resistor and the fourth resistor are connected in series with each other, connected between the power supply voltage and the ground; the negative input terminal of the comparator is drawn between the third resistor and the fourth resistor The sampling voltage is connected; the positive input terminal of the comparator is connected to the reference voltage extracted between the current source and the first resistor; the current source generates a current with zero temperature coefficient or a current with positive temperature coefficient through the main circuit of the bandgap reference source , which in turn is used to generate a stable reference voltage. The present invention can correctly generate a high-level pulse reset signal in the process of fast power-on of the system; in addition, when the system power supply is powered down to ultra-low voltage, the reset signal will not be released by mistake.