Inventor

ARAI TAKAO

JP139 patents

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

ARAI TAKAO

HITACHI LTD

Recording apparatus and reproducing apparatus for video signals

Receiving device, recording and reproducing device and receiving/recording-reproducing system for digital broadcast signal

Information receiving and recording/reproducing apparatus/method having function for limiting/delimiting for protecting copyright of recording information

Control method and apparatus for embedding information in data

Method for reproducing data, apparatus for reproducing data, method for coding data, method for recording data, apparatus for recording and reproducing data, method for authentication, semiconductor chip, reproducing apparatus, recording apparatus and data processing apparatus

Method and apparatus for recording and reproducing electronic watermark information, and recording medium

Data transmission method for embedded data, data transmitting and reproducing apparatuses and information recording medium therefor

Apparatus for recording and reproducing temporally compressed digital information signal

Information management apparatus for inhibiting reproduction in a video cassette recorder

Digital information signal transmitting/receiving method and system

Information recording and reproduction apparatus to be controlled by temporal information

Digital signal overlapped or joined recording method and apparatus

Method and apparatus for recording digital signals

Code error detection and correction method and apparatus

Azimuthal magnetic recording and reproducing apparatus

Data recording/reproduction apparatus and method

Water-mark embedding method and system

Method and apparatus for recording and reproducing electronic watermark information, and recording medium

Reproducing method and apparatus, for a video signal having copy control information

Signal recording/reproducing method and apparatus in which key information for descrambling is recorded in an area on the signal recording medium

Subscriber terminal of an interactive communication system and control device thereof

Rotary head type magnetic recording and reproducing apparatus

Disk reproducing apparatus capable of increasing speed of access to disks recorded at constant linear velocity

PCM signal generating/reproducing apparatus

Apparatus for recording/reproducing a digital signal at variable speeds

Method of transmitting digital data in which error detection codes are dispersed using alternate delay times

Decoding method and system for doubly-encoded Reed-Solomon codes

Method and apparatus for recording and reproducing a digital signal with a stationary head

Rotating head type magnetic record/reproduce apparatus

Reproducing and amplifying circuit for magnetoresistive head

Muting circuit in a PCM recording and reproducing apparatus

Digital watermark image processing method

Recording and/or reproducing apparatus for recording and/or reproducing image data compressed according to different compressing methods

Tracking control in apparatus for fast reproducing digital information signal from magnetic tape

Rotary head type PCM recording and reproduction method and system

Error correction method and system

PCM signal recording/reproducing apparatus

Digital player using a pulse width detector

Rotary head type magnetic recording and reproducing apparatus and method of producing tracking control signals therefor

Gain control circuit

Magnetic recording and reproducing device

Digital information recording-reproducing apparatus

NEC CORP

Low-noise zener diode

Power transistor with over-current protection controller

NEC ELECTRONICS CORP

Simulation circuit for MOS transistor, simulation testing method, netlist of simulation circuit and storage medium storing same

TOSHIBA KK

Digital data transmitting method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

Digital modulation apparatus, a digital modulation method, and a recording medium therefor

MEDICAL BIOLOG LAB CO LTD

Monoclonal antibody and method and kit for immunoassay of soluble human ST2

ECHO CORP

Device for transferring the disabled

RENESAS ELECTRONICS CORP

Semiconductor device with trench gate and method of manufacturing the same