Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Hiroshi Koshida

Shinzo Koyama

Motonori Ishii

Shiro Dosho

Shiro Sakiyama

Shigetaka Kasuga

Masaki Tamaru

Yusuke Tokunaga

Shigeru Saitou

Masato Takemoto

Seiji Watanabe

Tatsuya Kabe

A substrate current suppression circuit includes: a fixed voltage line that supplies a fixed voltage to the collectors of the third and fourth transistors. The fixed voltage is a voltage higher than the base voltage of the third and fourth transistors when the first polarity is p type, and is a voltage lower than the base voltage when the first polarity is n type.

Substrate current suppression circuit, reference voltage generation circuit, and semiconductor device

A distance measuring device is to be connected to a wave transmission module to transmit a measuring wave and a wave reception module including a first wave receiver and a second wave receiver, both of which receive the measuring wave reflected from a target. In this distance measuring device, a first wave reception period in which the first wave receiver receives the measuring wave and a second wave reception period in which the second wave receiver receives the measuring wave overlap with each other on a time axis. In addition, in this distance measuring device, a time lag is provided between respective beginning times of the first and second wave reception periods. The time lag is shorter than either the first wave reception period or the second wave reception period.

Distance measuring device, distance measuring system, distance measuring method, and program

A projection image pickup device includes a pulsed-light emitter, an optical sensor, a reference timing generator that generates a signal indicating an operation reference timing, a controller, and a signal processor. The signal processor sets a differential signal between an output signal from the optical sensor in the second exposure period and an output signal from the optical sensor in the first exposure period as a first differential signal, sets a differential signal between an output signal from the optical sensor in the third exposure period and the output signal from the optical sensor in the first exposure period as a second differential signal, and outputs the sum total of at least two differential signals including the first differential signal and the second differential signal.

Projection image pickup device and projection image pickup method

A phase adjustment circuit includes first to nth two-phase adjustment circuits. Each two-phase adjustment circuit includes a first logic circuit for performing logical sum of two input signals, a second logic circuit for performing logical product of the two input signals, a first delay circuit having a signal delay equal to that of the second logic circuit and configured to delay a signal output from the first logic circuit, and a second delay circuit having a signal delay equal to that of the first logic circuit and configured to delay a signal output from the second logic circuit. Two signals output from two of the two-phase adjustment circuits in a certain stage are input into one of the two-phase adjustment circuits in the next stage.

Phase adjustment circuit

Growing community of inventors

Osaka, Japan

Hiroshi Koshida