Inventor

NORO MASAO

JP104 patents

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

NORO MASAO

YAMAHA CORP

CMOS differential amplifier for a delta sigma modulator applicable for an analog-to-digital converter

Driving apparatus

Vibration source driving device

Capacitor-input positive and negative power supply circuit

Triangular wave generating circuit used in a Class-D amplifier

Self-operating PWM amplifier

Driving circuit having differential and H-bridge circuits for low voltage power source

D/A converter circuit having offset voltage application device

Power supply circuit

Power supply circuit

Amplification circuit

Acoustic device for custom installation

Acoustic apparatus and driving apparatus constituting the same

Power amplifier adapter

Temperature compensation circuit for negative impedance driving apparatus

Negative impedance driving apparatus having temperature compensation circuit

Impedance compensation circuit in a speaker driving system

Dither circuit using dither including signal component having frequency half of sampling frequency

Device for driving vibration source

Class D amplifier

A/D conversion apparatus

Delay circuit for analog signals

Analog-Digital converter using delta sigma modulation digital filtering, and gain-scaling

Waveform shaper and sigma-delta D/A converter

Digital amplifier

Speaker system and speaker enclosure

Current detection and overcurrent protection for transistors in pulse-width modulation amplifier

Pulse-width modulation circuit and power amplifier circuit

Electronic volume circuit

Class D amplifier

Temperature compensation circuit for negative impedance driving apparatus

Switching power device

Amplifier circuitry

Delta-sigma modulator for power amplification of audio signals

Digital-to-analog converter circuit

Power supply circuit

Remote control signal repeater having a bandpass filter and a level slicer

Power supply circuit utilizing voltage and current resonance for reducing switching loss

Driving apparatus, and control information storage body and protection circuit therefor

DC-to-DC voltage-increasing power source

Device for determining pick-up head tracking error in a digital tape player

Signal converter

Electroacoustic transducer

Electroacoustic transducer

Self-oscillating class-D amplifier and self-oscillating frequency control method for self-oscillating class-D amplifier

Electroacoustic transducer

Class D amplifier

NIPPON MUSICAL INSTRUMENTS MFG

Power amplifier with power supply switching

Output transistor protection circuit in a power amplifier with collector power dissipation limitation

(unassigned)

Pseudo-stereo circuit