Canon Kabushiki Kaisha

Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Mitsubishi Electronic Corporation

Kazuhiro Nakata

Kiichiro Takahashi

Osamu Iwasaki

Naoji Otsuka

Kentaro Yano

Atsushi Arai

Daigoro Kanematsu

Haruyuki Yanagi

Hiroyuki Saito

Takashi Nojima

Soichi Hiramatsu

Tetsuo Suzuki

Hideaki Kawakami

Hiroyuki Kinoshita

Masahiro Taniguro

Satoshi Saikawa

Masao Sasaki

Toshiharu Inui

Katsuyuki Yokoi

Tadashi Yamamoto

Kazuhiro Nakajima

Takashi Kasahara

Shinichi Hirasawa

When switching from a digital broadcast to a analog broadcast, a broadcast receiver switches to the analog broadcast after adjusting the reproduced frequency band and the degree of left-right separation of the digital broadcast to be equal to the values of the analog broadcast specified from the receiving state of the analog broadcast respectively, and, when switching from the analog broadcast to the digital broadcast, after adjusting the reproduced frequency band and the degree of left-right separation of the digital broadcast to be equal to the specified values of the analog broadcast respectively and then switching to the digital broadcast, adjusts the reproduced frequency band and the degree of left-right separation of the digital broadcast to be equal to values set for the digital broadcast respectively.

Broadcast receiver

A radio receiver apparatus calculates all frequencies to be estimated as spurious frequencies in the reception frequency band by performing addition and subtraction operations on frequencies of repeated combinations formed from frequencies of a plurality of intensive electric field station, and controls the spurious frequency not to be preset to the radio receiver apparatus even though signal intensity of a received signal having the spurious frequency exceeds a predetermined threshold.

Radio receiver apparatus

An idle stop controller includes an idle stop mechanismcontrolling the stop and the restart of an engine; a vehicle location detecting sectiondetecting a vehicle location; and a controller, when an ETC gate is retrieved within a predetermined region from a vehicle location detected by the vehicle location detecting section, prohibiting the idle stop mechanism from stopping the engine, and when no ETC gate has been detected within the predetermined region, releasing the prohibition.

Idle stop controller

A recording apparatus includes an electrolytic capacitor for stabilizing the head power source voltage, a transistor for charging the electrolytic capacitor, a transistor for discharging the electrolytic capacitor, a push-pull circuit, a resistor for controlling the charging/discharging current to the electrolytic capacitor, and a resistor for dividing the head power source voltage. The power supply to the head is turned on with the head power source voltage increased by the capacitor.

Recording apparatus

A mobile receiver apparatus includes first tunerfor converting a received frequency signal by antennainto an intermediate frequency signal, delay circuitfor setting a time required for the movement corresponding to a specific wavelength of the received frequency signal as a delay time, second tunerfor converting an output of the circuitinto a second intermediate frequency signal, and control unitsA andA for dynamically setting the delay time in the circuitin response to a measured movement speed of a mobile unit and a received electric field strength upon the measurement, and equiphase-combining the intermediate frequency signals generated by the tunersandto be outputted, and the unitA sets the delay time corresponding to a received frequency and a Doppler shift frequency in the circuit, and equiphase-combines signals having a phase difference of about &#xbc; wavelength (90&#xb0;).

Mobile receiver apparatus

A control sectiondetects the symmetry of an input pulse-like noise waveform with respect to a reference value from its Fourier spectrum distribution, and restricts, in the case of a symmetric wave, the operation of a noise elimination circuit such as a noise killer circuit, which performs previous value hold or various interpolation processing.

Radio receiving apparatus and noise elimination method in the same apparatus

A radio broadcast receiver includes a front end unit for tuning by changing a local oscillation frequency; and a control unit for managing by dividing the receiving band into a third frequency domain including a third frequency obtained by subtracting the intermediate frequency from an upper end frequency of the receiving band, a first frequency domain including a first frequency obtained by adding the intermediate frequency to a lower end frequency of the receiving band, and a second frequency domain where the first frequency domain and third frequency domain overlap, and for switching, when tuning is made across the frequency domains, the local oscillation frequency to an upper local oscillation frequency when the tuning frequency is higher than the third frequency by controlling the front end unit, and to a lower local oscillation frequency when it is lower than the first frequency by controlling the front end unit.

Radio broadcast receiver

A receiving apparatus discriminates RDS data containing traffic information corresponding to the vehicle's own position from RDS data of broadcasting stations searched for by frequency sweeping by a sub tuner front end; stores step by step into a pool memoryfrequencies of alternative stations identified by each PI code of the RDS data and the number of the alternative stations; determines the PI code with the greatest number of the alternative stations by comparing the numbers of the alternative stations for individual PI codes stored in the pool memoryin a frequency sweeping range; and receives the traffic information from the station with the highest received electric field strength among all the alternative stations identified by the PI code determined.

Receiving apparatus

An audio systemhas a plurality of audio sources-for outputting audio signals different from each other. A coefficient deviceadjusts the gain of the audio signal output from one of the audio sources. A nonvolatile memorystores, as internal gains, gains to be set to the coefficient device in correspondence with the audio sources. When a switch changeover sectionselects one of the audio sources, the CPUreads from the nonvolatile memory the internal gain corresponding to the audio source selected, and sets the internal gain to the coefficient device.

Audio system

A receiving apparatus has countersfor counting intervals between group typesA containing TMC data in RDS data in synchronization with an RDS clock signal, and causes a radio control unitto control a sub tuner front endso as to receive the group typeA and to execute radio processing other than receiving the TMC data during counting of the counters.

When selecting a specific input source that can be processed by only a second voice-data processing unit instead of an input source currently being processed by a first voice-data processing unit, a voice-data processing circuit selects and delivers an input source selected by a second analog switch to the first voice-data processing unit by using a first analog switch. Then, after the first and second voice-data processing units simultaneously process the identical input source other than the specific input source over a certain time period, the second analog switch selects and delivers the specific input source to the second voice-data processing unit and a first switch selects an output of the second voice-data processing unit and outputs a voice of the specific input source as an analog audio output.

Voice-data processing circuit and voice-data processing method

A method of raising the printing speed of an image printing device when time-division drive is performed, utilizes time-division drive using four times divisions. Image data is read out of the editing buffer of a RAM in regular order, in the form of a staircase, four dots at a time, and the image data is rearranged in the form of a staircase of eight dots in a print buffer within the same RAM. This makes it possible to transmit data from the RAM to a printhead one byte at a time in an efficient manner.

Data processing method, data processing apparatus and image printing apparatus

In a serial recording apparatus having three recording modes, i.e., normal, high-quality, and high-speed recording mode, sheet feed control satisfying requirements in these modes is performed. More specifically, high-speed sheet feed control is performed in the normal or high-speed recording mode, and low-noise sheet feed control with improved precision is performed in the high-quality recording mode although the speed is low.

A data transfer circuit or a recording apparatus includes an address setting unit for setting a start address for a buffer memory, an offset setting unit for setting an offset for the buffer memory, and an address creating unit for creating a predetermined number of consecutive transfer addresses to be supplied for the buffer memory using a reference address. The circuit also includes an arithmetic logic unit that, after the address creating unit has created transfer addresses using the start address as a reference address, calculates a new reference address in accordance with the offset relative to the start address so as to provide the new reference address to the address creating unit.

Growing community of inventors

Tokyo, Japan

Kazuhiro Nakata