Inventor

SUGAHARA TAKAYUKI

JP135 patents

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

SUGAHARA TAKAYUKI

VICTOR COMPANY OF JAPAN

Method and apparatus for contents information

Method and apparatus for altering the picture updating frequency of a compressed video data stream

Method of reducing quantization noise generated during a decoding process of image data and device for decoding image data

Method of reducing quantization noise generated during a decoding process of image data and device for decoding image data

Method and apparatus for generating information signal to be recorded

Copyright protection system for data storage and transmission

Decoding apparatus for protection of data reproduction according to protection data and first and second apparatus protection data to determine whether main data are reproduced in their entirety, partially or not at all

Method of protection of data reproduction, and reproduction apparatus providing protection of data reproduction

Scene change detector for detecting a scene change of a moving picture

Variable length coded data processing method and device for performing the same method

Copyright protection system for data storage and transmission

Apparatus for embedding and reproducing watermark into and from contents data

Method and apparatus for converting picture signal, and recording and reproducing apparatus

Method of reducing mosquito noise generated during decoding process of image data and device for decoding image data using the same

Method of and apparatus for compressing image representing signals

Data compression apparatus for video signal and method of data compression for video signal

After-recording apparatus

Contents information recording method, contents information processing unit, contents information deciphering method, contents information deciphering unit and media thereof

Apparatus and method of encoding moving picture signal

Video signal encoding method and apparatus employing an adaptive quantization technique

Video-audio recording apparatus and method, and video-audio reproducing apparatus and method

Method for protection of data reproduction according to both medium protection data and apparatus protection data, including limitation of reproduction based on a film classification system

Apparatus for embedding and reproducing watermark into and from contents data

Method and apparatus for encrypting and decrypting information

Method and apparatus for embedding and reproducing watermark into and from contents data

Contents recording apparatus, recording medium, contents reproducing apparatus, contents transmission method, transmission medium, and contents reception method

Recording apparatus and recording method of electronic watermark

Modulation system

Data coding method and apparatus therefor

Apparatus for protection of data reproduction according to protection data and first and second apparatus protection data to determine whether main data at specified positions are reproduced in their entirety, partially, or not at all

Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereof

Method for protection of data reproduction according to medium protection data and first and second apparatus protection data to determine whether main data are reproduced in their entirety, partially, or not at all and a range of protection level therefor

Method for protection of data reproduction according to medium protection data, position information and first and second apparatus protection data to determine whether main data at specified positions are reproduced in their entirety, partially, or not at all

Apparatus for protection of data reproduction according to medium protection data, position information and first and second apparatus protection data to determine whether main data at specified positions are reproduced in their entirety, partially, or not at all

Method for protection of data decoding according to medium protection data position information and first and second apparatus protection data to determine whether main data at specified positions are decoded in their entirety, partially, or not at all

Apparatus for protection of data decoding according to protection data and first and second apparatus protection data to determine whether main data are decoded in their entirety, partially, or not at all

Reproduction protection method according to both medium and apparatus protection data and a medium therefor

Method for protection of data decoding according to protection data and first and second apparatus protection data to determine whether main data are decoded in their entirety, partially, or not at all

MPEG picture data recording apparatus, MPEG picture data recording method, MPEG picture data recording medium, MPEG picture data generating apparatus, MPEG picture data reproducing apparatus, and MPEG picture data reproducing method

Encryption method, decryption method, and recording and reproducing apparatus

Apparatus for protection of data decoding according to transferred medium protection data, first and second apparatus protection data and a film classification system, to determine whether main data are decoded in their entirety, partially, or not at all

Cryptosystem-related method and apparatus

Method for protection of data decoding according to transferred protection data, first and second apparatus protection data and a film classification system, to determine whether main data are decoded in their entirety, partially, or not at all and a range of protection level therefor

Disc recorder for recording coded data to be reproduced in real time and method of doing the same

Method for decoding protection according to both transferred protection data and apparatus protection data

Reproduction protection method according to both medium and apparatus protection data and a medium therefor

KOBE STEEL LTD

Fluidized bed reduction method, fluidized bed reduction reactor, and fluidized bed reduction system

SUGAHARA TAKAYUKI

Method for protection of data reproduction according to both medium protection data and apparatus protection data