Inventor

IWAMATSU TAKANORI

JP61 patents

⚠️ This page may combine multiple inventors who share the name “IWAMATSU TAKANORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

IWAMATSU TAKANORI

FUJITSU LTD

Apparatus for estimating propagation path characteristics

Carrier reproducing circuit including region deciding circuitry

Demodulator having cross polarization interference canceling function

Quasi-synchronous detection and demodulation circuit and frequency discriminator used for the same

Quasi-synchronous detection and demodulation circuit and frequency discriminator used for the same

Cross polarization interference canceller

Decision timing control circuit

Radio receiving apparatus

Demodulator using quasi-synchronous detection to demodulate modulated quadrature input signals

Jitter suppressing circuit

Inter-cross wave compensation method and apparatus performing frequency conversion on signed not detected by a demodulating unit

Repeater

Distortion compensating device

Distortion compensating device

Space diversity receiving apparatus

Clock phase detecting circuit

Digital modulator and digital demodulator

Automatic amplitude equalizer

Clock phase detecting circuit and clock regenerating circuit each arranged in receiving unit of multiplex radio equipment

Digital quadrature amplitude modulators

Carrier regeneration circuit including area judging device

Fractionally spaced cross-polarization interference canceller

Digital demodulator apparatus

Decision timing control circuit

Communication system including a digital roll-off filter

Correlation energy detector and radio communication apparatus

Radio communication apparatus

Digital modulation apparatus

Reference carrier generator device for pulling a reference carrier out of a false stabilized point into a correct stabilized point of synchronism

Distortion compensating device

Digital modulator and digital demodulator

Quasi-synchronous detection and demodulation circuit and frequency discriminator used for the same

Automatic drift control circuit

Digital predistortion apparatus and method

Multilevel amplitude modulation and demodulation communication system

Method and apparatus for achieving demodulation in radio communications system using M-sequence orthogonal modulation

Method and apparatus for achieving demodulation in radio communications system using M-sequence orthogonal modulation

Digital pre-distortion transmitter and method for controlling the same

Communication system including a digital roll-off filter

Wireless communication system, distortion compensation device, and distortion compensation method

Clock phase detecting circuit and clock regenerating circuit each arranged in receiving unit of multiplex radio equipment

Optimizing apparatus and method for a pulse shaping filter and a transmitter

Method and apparatus for controlling update of digital pre-distortion coefficient

Transmission device, and array antenna control method and device

OFDM transceiver apparatus

Directivity control apparatus of array antenna and directivity controlling method

NIPPON TELEGRAPH & TELEPHONE

Cross polarization interference canceler and cross polarization interference eliminating apparatus using the same

OOTA YOSHIYUKI

Base station apparatus, mobile station apparatus, and method of assigning subcarriers

LI HUI

Apparatus for and method of controlling a predistorter, and method of detecting power control state

NAKAYA YUUTA

Mobile station communication device, inter-mobile station communication system, and inter-mobile station communication method