Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Masataka Nikaido

Tatsuya Adachi

Takafumi Ueno

Naoki Ejima

Kinji Kawamoto

Kiyotaka Nagai

Tetsuhiko Kaneaki

Yasushi Nakajima

Kazuhiro Murase

Sakurako Matsuda

Masayuki Kozuka

Hideki Matsushima

Shunji Harada

Teruto Hirota

Yasushi Uesaka

Kenji Muraki

Shiro Tsuji

Nobuyoshi Kihara

Masao Tsukamoto

Hideshi Taki

An audio object (AOB) for which corresponding rights management information (RMI) has been generated by a license management apparatus, and an AOB for which RMI does not exist are written into a recording medium for use in an SDMI system which includes the license management apparatus. Each AOB is put in correspondence with a migration permission flag (MPF). When the corresponding AOB is the AOB for which RMI does not exist, the relevant MPF is set to on so as to show that a migration procedure is permitted. When the corresponding AOB is the AOB for which RMI has been generated by the license management apparatus, the relevant MPF is set to off so as to show that a migration procedure is not permitted.

Recording medium, license management apparatus, and recording and playback apparatus

In an apparatus that carries out reproduction control on the basis of digital watermark information embedded in a content, for the purpose of providing a reproducing apparatus and a reproducing method in which reproduction stoppage in the middle of reproduction according to the detection result of the digital watermark information does not occur, the reproducing apparatus and the reproducing method are configured so that before reproduction the detection section thereof detects attached information embedded in a content that is recorded on a recording medium, so that the content and the attached information that is detected using the detection section are stored in the storage section thereof so as to be related to each other, and so that the reproduction of the content corresponding to the attached information stored in the storage section is controlled according to the attached information.

Method and apparatus for reproducing content according to information embedded in the content

A variable speed digital signal reproducing apparatus, particularly related to low speed reproduction of a digital signals recorded in a recording medium. The apparatus includes a unit for determining whether a reproduction PCM signal is renewed or not. Based on the renewal determination, PCM data of one frame is stored in a memory and the PCM data is read at a frequency rate corresponding to a tape reproducing speed at that time. Furthermore an interpolating device operates on the read PCM data to produce a PCM signal having the same frequency with which the PCM signal was read from the memory means.

Variable speed digital signal reproducing apparatus

This invention relates to a time code recording and reproducing apparatus for recording and reproducing time codes corresponding to a digital signal. Time code converting means (100) converts a first time code into a second time code. A frame phase which occurs during the recording of input information is determined by frame timing generating means. A phase difference between a frame of the second time code and a recording frame is detected by phase difference detecting means (103). Phase difference correcting means (104) outputs a third time code on the basis of the detected phase difference. The input information is recorded together with the third time code. Thereby, the recording can be performed while the relation of the correspondence between the input information and the time code is held. In addition, the reproduction can be performed.

Time code recording or reproducing apparatus and time code converter

A sound generator for an electronic musical instrument produces sounds from waveform data combinations stored in a memory. Each of the waveform data combinations is a data combination obtained from a waveform of a natural sound by digital data conversion preferably including information condensation. The selection of a waveform data combination is performed by an address generator which produces an address signal for the memory from an information from a keyboard. The information includes a touch information representing key depressing speed and/or strength, or both of the touch information and a pitch information. The loudness level of a generated tone is controlled by a loudness controller in response to the touch information, or to both of the touch information and pitch information.

Sound generator for electronic musical instrument

A wave generating method and a wave generating apparatus using the method are arranged such that plurality of wave samples, each being generated successively, are respectively weighted by, for example, being multiplied by a plurality of wave functions generated corresponding to the plurality of wave samples. The plurality of weighted wave samples are summed to obtain a desired wave. The kind of each of the plurality of wave samples generated successively is changed at each time when the value of corresponding one of the plurality of wave functions becomes zero. Therefore, the apparatus includes wave generators for generating the wave samples successively, wave function generators for generating the wave functions successively, multipliers for multiplying the wave samples by the wave functions respectively, an adder for adding all of the outputs of the multipliers to generate the desired wave, and a wave changing circuit for changing the kind of each of the wave samples when the corresponding one of the wave functions becomes zero.

Wave generating method and apparatus using same

A multiple wave generator for an electronic musical instrument which has a wave data memory storing plural data samples of a wave shape, a wave address register storing wave address data partially designating sampled data in the wave data memory, a difference address register storing difference address data which specifies incremental address amount, a wave address calculator adding the wave address data to the difference address data and writing into the wave address register, the summed address data being separated into wave memory address data and partial address data, and a wave calculator. The wave memory address data, which are part of the wave address data, are applied to the wave data memory for reading out one data sample, and the one data sample and the partial address data are applied to the wave calculator for calculating interpolated wave sample data corresponding to the wave memory address and the partial address.

Multiple wave generator

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Osaka, Japan

Masataka Nikaido