Hiroji Akahori

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Receiving apparatus, and computer readable memory medium that store...
- Patent number 8,804,882
- Issue date Aug 12, 2014
- Casio Computer Co., Ltd.
- Hiromune Nagai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Correlator and demodulation device including the correlator
- Patent number 8,559,538
- Issue date Oct 15, 2013
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for detecting interference wave
- Patent number 8,391,348
- Issue date Mar 5, 2013
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Channel estimating method and channel estimator
- Patent number 8,345,799
- Issue date Jan 1, 2013
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Radio frequency receiving apparatus, radio frequency receiving meth...
- Patent number 8,055,232
- Issue date Nov 8, 2011
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Scattered pilot location detector
- Patent number 8,045,630
- Issue date Oct 25, 2011
- Oki Semiconductor Co., Ltd.
- Masato Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
RF receiver device
- Patent number 8,041,322
- Issue date Oct 18, 2011
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Fast fourier transform circuit and fast fourier transform method
- Patent number 8,032,576
- Issue date Oct 4, 2011
- Oki Semiconductor Co., Ltd.
- Takamitsu Hafuka
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Equalizer circuit
- Patent number 8,019,009
- Issue date Sep 13, 2011
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Correlation calculation unit and correlation calculation apparatus
- Patent number 8,005,157
- Issue date Aug 23, 2011
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
OFDM receiver and doppler frequency estimating circuit
- Patent number 7,983,360
- Issue date Jul 19, 2011
- Oki Semiconductor Co., Ltd.
- Masato Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency offset detector
- Patent number 7,978,775
- Issue date Jul 12, 2011
- Oki Semiconductor Co., Ltd.
- Masato Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Delay profile generator
- Patent number 7,864,664
- Issue date Jan 4, 2011
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
FSK signal modulator for producing a binary FSK signal
- Patent number 7,860,187
- Issue date Dec 28, 2010
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
OFDM receiver and doppler frequency estimating circuit
- Patent number 7,856,066
- Issue date Dec 21, 2010
- Oki Semiconductor Co., Ltd.
- Masato Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Detector for detecting a frequency-shift keying signal by digital p...
- Patent number 7,804,916
- Issue date Sep 28, 2010
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Decision timing synchronous circuit and receiver circuit
- Patent number 7,738,614
- Issue date Jun 15, 2010
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
FSK signal detector for detecting FSK signal through digital proces...
- Patent number 7,715,500
- Issue date May 11, 2010
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Phase-locked loop for maintaining system synchronization through pa...
- Patent number 7,711,010
- Issue date May 4, 2010
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Equalizer and equalization method
- Patent number 7,684,311
- Issue date Mar 23, 2010
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Likelihood corrector and likelihood correction method
- Patent number 7,583,741
- Issue date Sep 1, 2009
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Filter device and transmission power control apparatus
- Patent number 7,532,905
- Issue date May 12, 2009
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for controlling transmission power
- Patent number 7,486,935
- Issue date Feb 3, 2009
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
OFDM receiver
- Patent number 7,482,958
- Issue date Jan 27, 2009
- Oki Semiconductor Co., Ltd.
- Masato Tanaka
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Pulse modulator and PPM demodulation determining circuit employed i...
- Patent number 7,436,916
- Issue date Oct 14, 2008
- Oki Electric Industry Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Demodulator for demodulating pulse position modulated signal
- Patent number 7,414,463
- Issue date Aug 19, 2008
- Oki Electric Industry Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
OFDM transmission system
- Patent number 7,362,282
- Issue date Apr 22, 2008
- Oki Electric Industry Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
OFDM transmission system
- Patent number 7,362,695
- Issue date Apr 22, 2008
- Oki Electric Industry Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for generating a frequency control signal
- Patent number 7,224,755
- Issue date May 29, 2007
- Oki Electric Industry Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Demodulator for demodulating pulse position modulated signal
- Patent number 7,221,215
- Issue date May 22, 2007
- Oki Electric Industry Co., Ltd.
- Yoshihito Shimazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
OFDM MODULATION SIGNAL DEMODULATOR, RECEIVING APPARATUS, AND RECEIV...
- Publication number 20140023165
- Publication date Jan 23, 2014
- Hiroji AKAHORI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OFDM MODULATION SIGNAL DEMODULATOR, RECEIVING APPARATUS, AND RECEIV...
- Publication number 20140023166
- Publication date Jan 23, 2014
- Hiroji AKAHORI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CORRELATOR AND DEMODULATION DEVICE INCLUDING CORRELATOR
- Publication number 20120051472
- Publication date Mar 1, 2012
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DIVERSITY RECEPTION DEVICE AND DIVERSITY RECEPTION METHOD
- Publication number 20120045025
- Publication date Feb 23, 2012
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CORRELATOR AND DEMODULATION DEVICE INCLUDING THE CORRELATOR
- Publication number 20120045004
- Publication date Feb 23, 2012
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
RECEIVING APPARATUS, AND COMPUTER READABLE MEMORY MEDIUM THAT STORE...
- Publication number 20110255642
- Publication date Oct 20, 2011
- OKI SEMICONDUCTOR CO., LTD.
- Hiromune Nagai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FSK SIGNAL MODULATOR FOR PRODUCING A BINARY FSK SIGNAL
- Publication number 20110129034
- Publication date Jun 2, 2011
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OFDM RECEIVER AND DOPPLER FREQUENCY ESTIMATING CIRCUIT
- Publication number 20110069771
- Publication date Mar 24, 2011
- OKI SEMICONDUCTOR CO., LTD.
- Masato TANAKA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
APPARATUS AND METHOD FOR DETECTING INTERFERENCE WAVE
- Publication number 20100124267
- Publication date May 20, 2010
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CHANNEL ESTIMATING METHOD AND CHANNEL ESTIMATOR
- Publication number 20100027720
- Publication date Feb 4, 2010
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
RF RECEIVER DEVICE
- Publication number 20090209219
- Publication date Aug 20, 2009
- Oki Semiconductor Co., Ltd.
- Hiroji Akahori
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
EQUALIZER CIRCUIT
- Publication number 20090129457
- Publication date May 21, 2009
- Oki Electric Industry Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DELAY PROFILE GENERATOR
- Publication number 20090092200
- Publication date Apr 9, 2009
- Oki Electric Industry Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CORRELATION CALCULATION UNIT AND CORRELATION CALCULATION APPARATUS
- Publication number 20090052562
- Publication date Feb 26, 2009
- Oki Electric Industry Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
RADIO FREQUENCY RECEIVING APPARATUS, RADIO FREQUENCY RECEIVING METH...
- Publication number 20090004987
- Publication date Jan 1, 2009
- Oki Electric Industry Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FAST FOURIER TRANSFORM CIRCUIT AND FAST FOURIER TRANSFORM METHOD
- Publication number 20080215656
- Publication date Sep 4, 2008
- Oki Electric Industry Co., Ltd.
- Takamitsu Hafuka
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
OFDM RECEIVER AND DOPPLER FREQUENCY ESTIMATING CIRCUIT
- Publication number 20080101215
- Publication date May 1, 2008
- Oki Electric Industry Co., Ltd.
- Masato Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ORTHOGONAL FREQUENCY DIVISION MULTIPLEX (OFDM) SIGNAL EQUALIZIER
- Publication number 20080101216
- Publication date May 1, 2008
- Oki Electric Industry Co., Ltd.
- Masato Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FREQUENCY OFFSET DETECTOR
- Publication number 20080101519
- Publication date May 1, 2008
- Oki Electric Industry Co., Ltd.
- Masato Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OFDM RECEIVER
- Publication number 20080100485
- Publication date May 1, 2008
- Oki Electric Industry Co., Ltd.
- Masato Tanaka
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Scattered pilot location detector
- Publication number 20080095255
- Publication date Apr 24, 2008
- Oki Electric Industry Co., Ltd.
- Masato Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Correlation value calculation method and correlator using the same
- Publication number 20080095280
- Publication date Apr 24, 2008
- Oki Electric Industry Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FFT window spread generating method
- Publication number 20080095289
- Publication date Apr 24, 2008
- Oki Electric Industry Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
EQUALIZER DEMODULATING A SIGNAL INCLUDING SP SYMBOLS AND AN EQUALIZ...
- Publication number 20080063040
- Publication date Mar 13, 2008
- Oki Electric Industry Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Phase-locked loop for maintaining system synchronization through pa...
- Publication number 20070195829
- Publication date Aug 23, 2007
- Oki Electric Industry Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Demodulator for demodulating pulse position modulated signal
- Publication number 20070159241
- Publication date Jul 12, 2007
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Detector for detecting a frequency-shift keying signal by digital p...
- Publication number 20070160170
- Publication date Jul 12, 2007
- Oki Electric Industry Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FSK signal modulator for producing a binary FSK signal
- Publication number 20070147544
- Publication date Jun 28, 2007
- Oki Electric Industry Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Decision timing synchronous circuit and receiver circuit
- Publication number 20070147565
- Publication date Jun 28, 2007
- Oki Electric Industry Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FSK signal detector for detecting FSK signal through digital proces...
- Publication number 20070071138
- Publication date Mar 29, 2007
- Oki Electric Industry Co., Ltd.
- Hiroji Akahori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Hiroji Akahori

Person

Patents Grantslast 30 patents

Receiving apparatus, and computer readable memory medium that store...

Correlator and demodulation device including the correlator

Apparatus and method for detecting interference wave

Channel estimating method and channel estimator

Radio frequency receiving apparatus, radio frequency receiving meth...

Scattered pilot location detector

RF receiver device

Fast fourier transform circuit and fast fourier transform method

Equalizer circuit

Correlation calculation unit and correlation calculation apparatus

OFDM receiver and doppler frequency estimating circuit

Frequency offset detector

Delay profile generator

FSK signal modulator for producing a binary FSK signal

OFDM receiver and doppler frequency estimating circuit

Detector for detecting a frequency-shift keying signal by digital p...

Decision timing synchronous circuit and receiver circuit

FSK signal detector for detecting FSK signal through digital proces...

Phase-locked loop for maintaining system synchronization through pa...

Equalizer and equalization method

Likelihood corrector and likelihood correction method

Filter device and transmission power control apparatus

Method and system for controlling transmission power

OFDM receiver

Pulse modulator and PPM demodulation determining circuit employed i...

Demodulator for demodulating pulse position modulated signal

OFDM transmission system

OFDM transmission system

Method and apparatus for generating a frequency control signal

Demodulator for demodulating pulse position modulated signal

Patents Applicationslast 30 patents

OFDM MODULATION SIGNAL DEMODULATOR, RECEIVING APPARATUS, AND RECEIV...

OFDM MODULATION SIGNAL DEMODULATOR, RECEIVING APPARATUS, AND RECEIV...

CORRELATOR AND DEMODULATION DEVICE INCLUDING CORRELATOR

DIVERSITY RECEPTION DEVICE AND DIVERSITY RECEPTION METHOD

CORRELATOR AND DEMODULATION DEVICE INCLUDING THE CORRELATOR

RECEIVING APPARATUS, AND COMPUTER READABLE MEMORY MEDIUM THAT STORE...

FSK SIGNAL MODULATOR FOR PRODUCING A BINARY FSK SIGNAL

OFDM RECEIVER AND DOPPLER FREQUENCY ESTIMATING CIRCUIT

APPARATUS AND METHOD FOR DETECTING INTERFERENCE WAVE

CHANNEL ESTIMATING METHOD AND CHANNEL ESTIMATOR

RF RECEIVER DEVICE

EQUALIZER CIRCUIT

DELAY PROFILE GENERATOR

CORRELATION CALCULATION UNIT AND CORRELATION CALCULATION APPARATUS

RADIO FREQUENCY RECEIVING APPARATUS, RADIO FREQUENCY RECEIVING METH...

FAST FOURIER TRANSFORM CIRCUIT AND FAST FOURIER TRANSFORM METHOD

OFDM RECEIVER AND DOPPLER FREQUENCY ESTIMATING CIRCUIT

ORTHOGONAL FREQUENCY DIVISION MULTIPLEX (OFDM) SIGNAL EQUALIZIER

FREQUENCY OFFSET DETECTOR

OFDM RECEIVER

Scattered pilot location detector

Correlation value calculation method and correlator using the same

FFT window spread generating method

EQUALIZER DEMODULATING A SIGNAL INCLUDING SP SYMBOLS AND AN EQUALIZ...

Phase-locked loop for maintaining system synchronization through pa...

Demodulator for demodulating pulse position modulated signal

Detector for detecting a frequency-shift keying signal by digital p...

FSK signal modulator for producing a binary FSK signal

Decision timing synchronous circuit and receiver circuit

FSK signal detector for detecting FSK signal through digital proces...