Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Other

Kabushiki Kaisha Toshiba

Matushita Electric Industrial Co., Ltd.

Masatoshi Shimbo

Yoshihiro Mori

Akihisa Kawamura

Naoki Ejima

Noriaki Horii

Ikuoh Nishida

Masayuki Kozuka

Tadashi Kojima

Koichi Hirayama

Shin-ichi Tanaka

Tadashi Abe

Shinya Yamada

Masaya Yamamoto

Masaharu Matsumoto

Kazutaka Abe

Ryoji Suzuki

Takuyo Kogure

Toshiyuki Goto

Katsuhiro Kurosawa

An information recording medium includes a first recording area for recording first information and first management information regarding handling of the first information; and a second recording area for recording second information generated based on the first information, and second management information regarding handling of the second information.

Information recording medium and reproduction apparatus therefor

An information recording medium is for recording of information, and identification information indicating whether the information is an album content distributed by electronic distribution or information edited by a user.

Information recording medium, recording apparatus, editing apparatus, reproduction apparatus, recording method, editing method, and reproduction method

The present invention provides an information recording medium in which at least one set of an audio data portion and a music block, which represent a piece of music, is recorded. The audio data portion includes first audio data. The music block includes first music reproduction information associated with the first audio data so as to manage reproduction of the first audio data. The first music reproduction information includes a first block type which indicates that the first audio data is audio data for a first use.

Information recording, information reproducing and copying apparatuses, and information recording medium for recording and reproducing music

A method for transferring audio data and audio-related information includes: a generation step of generating second audio data from first audio data; a transmission step of transmitting the second audio data and audio-related information associated with the second audio data; and a reception step of receiving the second audio data and the audio-related information, wherein the audio-related information includes information representing a sampling frequency of the first audio data.

Receiver for receiving audio data and audio-related information

There is provided a recording medium reproducing apparatus in which a digital signal immediately before being inputted to a D/A converting LSI is prevented from being taken out and unfairly copied. A digital signal processing LSI and the D/A converting LSI are connected to each other through an external bus. A scrambling processing circuit for scrambling a digital signal outputted from a digital signal processing circuit is provided inside the digital signal processing LSI. A descrambling processing circuit for descrambling the scrambled digital signal transmitted through the external bus is provided inside the D/A converting LSI.

Method of transmitting data among a plurality of LSIs, and recording medium reproducing apparatus using the method

When, through a multi-speaker of a DVD audio system, signals are recorded/reproduced using a sampling frequency different for every channel, the quantity of calculation of a filter circuit is reduced. Up-sampling information about whether or not the sampling is carried out before the up-sampling by up-sampling means ( ) is acquired by up-sampling information detecting means ( ). The signal up-sampled is filtered by a halfband filter circuit ( ), subjected to loss-less compression, and recorded on a recording medium ( ).

Signal processor

A method for transferring audio data and audio-related information includes generating second audio data from first audio data, transmitting second audio data and audio-related information associated with the second audio data, and receiving the second audio data and audio-related information which includes information on a sampling frequency of the first audio data.

Apparatus and method for audio data/audio-related information transfer

There is provided a DVD-audio reproducing apparatus in which a digital signal immediately before being inputted to a D/A converting LSI is prevented from being taken out and unfairly copied. A digital signal processing LSI and the D/A converting LSI are connected to each other through an external bus. A scrambling processing circuit for scrambling a digital signal outputted from a digital signal processing circuit is provided inside the digital signal processing LSI. A descrambling processing circuit for descrambling the scrambled digital signal transmitted through the external bus is provided inside the D/A converting LSI.

Method of transmitting data among a plurality of LSIs, and DVD-audio reproducing apparatus using the method

A data transmission system for transmitting information data with a parity of an error correcting code for correcting an error in the information data. A read-out controller controls a transmitter to transmit information data and a parity so that each data component of the information data obtained by dividing the information data of one data block area into a plurality of data components and each parity component of the parity obtained by dividing the parity of one block area into a plurality of parity components are transmitted at intervals along each sector having a sector address. The sector is defined as an data area obtained by dividing one data block area of a predetermined data amount into a plurality of sectors each having an identical data amount.

Data transmission system, data recording and reproducing apparatus and recording medium each having data structure of error correcting code

An information storing disk including at least one system stream stored thereon. The at least one system stream includes a silent cell for defining a silent period and an audio cell for defining audio data to be reproduced after the silent period. The silent period is a period to be silent, which is from when one system stream to be reproduced among at least one system stream is determined until reproduction of an audio cell included in the one system stream is started.

Information storing disk, reproduction apparatus, and reproduction method

In an optical disk, data are recorded by using a hierarchical file structure in which a frame is composed of digitized data, a packet is composed of at least one frame, and a pack is composed of at least one packet. In this structure, the pack is composed of an integral number of packets, each packet being completed, and each of the packets is composed of an integral number of frames, each frame being completed. Therefore, there is no possibility that one frame is assigned over two or more different packets and one packet is assigned over two or more different packs. Since an integral number of frames are assigned in each packet, when a packet header is detected, reproduction of data can be carried out from the beginning of each packet.

Optical disk

A data scrambling method, defined by data polynomial,

Data scrambling method, data scrambling apparatus, data descrambling

A data transmission system for transmitting information data with a parity of an error correcting code for correcting an error in the information data. A read-out controller controls a transmitter to transmit information data and a parity so that each data component of the information data obtained by dividing the information data of one data block area into a plurality of data components and each parity component of the parity obtained by dividing the parity of one block area into a plurality of parity components are transmitted at intervals of each sector having a sector address. The sector is defined as an data area obtained by dividing one data block area of a predetermined data amount into a plurality of sectors each having an identical data amount.

Data transmission system, data recording and reproducing apparatus and

A method and apparatus for descrambling data that is characterized by shift registers that realize an operation of generating polynomial and that have a ring-shaped structure that realizes plural and continuous operation. The method and apparatus further includes an initial value setting means for setting initial values in m shift registers; after setting the initial values, shifting the initial values while synchronizing the initial values with input clocks, and outputting the exclusive OR of data which is input while being synchronized with clocks and the lowermost latch outputs. Scrambled data with a byte is treated as a unit by using an exclusive OR circuit block.

Growing community of inventors

Mino, Japan

Masatoshi Shimbo