Patent application number | Description | Published |
20090080540 | PULSE TRANSMITTER, PULSE RECEIVER, PULSE TRANSMITTING METHOD, AND PULSE DEMODULATING METHOD - A pulse transmitter having a relatively simple structure and generating a pulse modulating signal even at a high transmission rate. In the pulse transmitter, a symbol pulse generating part ( | 03-26-2009 |
20090174494 | PULSE GENERATION CIRCUIT AND MODULATOR - It is an object of the invention to provide a pulse generation circuit and a modulator for realizing a high On/Off ratio in a small circuit scale and with lower power consumption. A short pulse generation circuit according to the invention includes an oscillator | 07-09-2009 |
20090177954 | CODE ERROR DETECTING DEVICE, WIRELESS SYSTEM AND CODE ERROR DETECTING METHOD - A code error detecting device that can more precisely detect a code error due to a delayed wave is disclosed. The code error detecting device includes a receiving antenna ( | 07-09-2009 |
20090195330 | VIBRATOR, RESONATOR USING THE SAME AND ELECTROMECHANICAL FILTER USING THE SAME - An object is to provide a resonator and a vibrator with a high Q value in which dissipation of vibration energy in vibration of the vibrator is small, and a thickness of a support part of the vibrator of a beam structure is made thicker than a thickness of the vibrator and the support part is formed in axisymmetry with respect to a length direction of a beam. By this configuration, brittleness of the support part is improved and loss of vibration energy from the support part is reduced and also loss of vibration energy resulting from surface roughness of a surface of the vibrator can be reduced, so that a resonator having a high Q value can be provided. | 08-06-2009 |
20090252258 | PULSE SIGNAL RECEPTION DEVICE, PULSED QPSK SIGNAL RECEPTION DEVICE, AND PULSE SIGNAL RECEPTION METHOD - A pulse signal reception device of a comparatively simple configuration detects a signal sampled at an optimal clock timing for a pulse modulation signal having a signal width shorter than a symbol frequency. In this device, a time division unit ( | 10-08-2009 |
20090315605 | VARIABLE DELAY APPARATUS - It is an object of the invention to provide a variable delay apparatus in which, even immediately after the delay amount of the variable delay apparatus is changed, a signal of a timing that is different from a set delay amount is not output. The variable delay apparatus of the invention includes: a variable delay block | 12-24-2009 |
20100090770 | MULTIPLYING OSCILLATOR AND WIRELESS APPARATUS IN WHICH THE SAME IS INSTALLED - An object of the invention is to provide a multiplying oscillator capable of generating a high frequency signal by small circuit scale and power consumption in an oscillator for generating a signal with a frequency of a microwave band or more, and a local oscillator using this multiplying oscillator. A multiplying oscillator of the invention obtains a frequency signal four times or more a fundamental wave by adding a frequency adjusting unit | 04-15-2010 |
20100246660 | Pulse-Sync Demodulator - A received pulse signal based on an on-off keying modulation scheme is alternately sampled by AD conversion sections operated by a clock signal whose frequency is one-half of a transmission rate. In the synchronization, amounts of delay in sampling timing adjustment sections are made different from each other, whereby phases of two different points in a symbol pulse are sampled. An amount of delay in a variable delay section is adjusted in accordance with a result of comparison of the sampled values, thereby achieving synchronization. At the time of demodulation, the amount of delay in the variable delay section is held, and the amounts of delay in the sampling timing adjustment sections are switched to the same value, and the symbol pulse is alternately sampled. The sampled values are subjected to threshold value determination, and the determination result is subjected to parallel-to-serial conversion, whereby a demodulation output is acquired. | 09-30-2010 |
20100271148 | SIGNAL MODULATOR - A signal modulator that can control transmission power if level adjustment of a continuous signal from an oscillator is executed is provided. A pulse generator of one example of a signal modulator includes an oscillator, a control signal generator, a multiplier, a filter, and a control section. The oscillator and the multiplier are active circuits formed of active elements. A continuous signal is output from the oscillator and is input to the multiplier and the multiplier intermittently operates by a control signal output from the control signal generator, whereby a pulse signal is generated and the power level is easily adjusted by a signal from the control section. | 10-28-2010 |
20110121913 | SLOW WAVE TRANSMISSION LINE - There is provided a low loss slow wave transmission line that can be miniaturized. A slow wave transmission line of the present invention has a configuration which includes a repeated arrangement of a low impedance line and a high impedance line and in which the high impedance line is longer than the low impedance line in terms of a line length. | 05-26-2011 |
20120306687 | HIGH SPEED HIGH RESOLUTION WIDE RANGE LOW POWER ANALOG CORRELATOR AND RADAR SENSOR - A high speed high dynamic range and low power consumption analog correlator for use in a radar sensor. The analog correlator combines various pulse replication schemes with various parallel integrator architectures to improve the detection speed, dynamic range, and power consumption of conventional radar sensors. The analog correlator includes a replica generator, a multiplier, and an integrator module. The replica generator generates a template signal having a plurality of replicated pulse compression radar (PCR) pulses. The multiplier multiplies a received PCR signal with the plurality of replicated PCR pulses. The integrator module is coupled to the multiplier and configured to generate a plurality of analog correlation signals, each of which is based on the multiplying between the received PCR signal and one of the replicated PCR pulses. | 12-06-2012 |