U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 369/59.27 - Binary signal multiplexing or demultiplexing


Subclass of Class 369 - Dynamic information storage or retrieval
Definition: Subject matter including means for a) combining plural
No. of patents: 51
Last issue date: 06/29/2010


1    
NumberTitleIssue Date
7746751Recording medium, data recording device and method, data reproducing device and method, program, and recording medium
The present invention enables audio data to be recorded or played back more easily. LPCM samples from an LPCM sample 301-1 of a first channel to an LPCM sample 304-1 of a fourth channel in audio data are combined in order to generate a GO...
06/29/2010
7408850Method for decoding data received from a data source using hardware configuration data received from the same data source
Today the storage of audiovisual (AV) data on storage media employs standardized coding schemes, e.g. MPEG-2. End user devices for AV presentation, like disc players, contain dedicated decoders implemented in hardware, which are able to decode data streams complying...
08/05/2008
7406008Recording medium and system for recording and reproducing the recording medium using control information that represents the number of sets of information composing the multiplexed audio information
A recording medium has a first recording area on which multiplexed audio informations are recorded as sets of one or more information units, a second recording area on which control information for controlling recording of the multiplexed audio informations are reco...
07/29/2008
7310823Digital information recording apparatus and outputting apparatus
A digital information recording apparatus includes multiple recording circuits for making multiple copies. The apparatus limits the number of copies, however, in accordance with copy information provided within the digital information itself. When the number of copi...
12/18/2007
7269107Method of detecting land pre-pit signal and optical disc player
The method of the present invention is capable of securely detecting LPP signals. The method comprises the steps of: reading a push-pull signal including a wobble component and LPP components; and slice-shaping the push-pull signal with a slice signal so as to binar...
09/11/2007
7233551Optical disk control device for time-division-multiplexing and A/D conversion
An optical disk control device comprises a playback signal detection unit for detecting data recorded on a disk by irradiating the disk with a converged light beam; a signal switching unit for successively selecting plural data signals obtained by the playback signa...
06/19/2007
7197001Apparatus for detecting a pre-pit signal
An apparatus for detecting a pre-pit signal at different laser power intensities of an optical disk drive. The apparatus includes an amplifier for receiving a push-pull signal acquired from an optical disk to generate an adjusted signal, a multiplexer for receiving ...
03/27/2007
7136346Record carrier method and apparatus having separate formats for a stereo signal and a data signal
A record carrier carries a stereo signal and a data signal which includes a first data portion and a remaining data portion. A first channel on the record carrier includes a composite signal which is obtained by combining the stereo signal and the first data portion...
11/14/2006
7136335Information recording medium, recording apparatus, and reproduction apparatus
An information recording medium for recording main information and auxiliary information is provided. The auxiliary information is recorded on the information recording medium in a manner that edge positions of the pits or the recording marks indicating the main inf...
11/14/2006
7050370Digital audio recording medium and reproducing apparatus thereof
A DVD audio data structure following high-sound-quality specifications is realized, making the best use of the audio data structure standard in DVD video. A first sample data string created by digitizing a first channel audio signal at a first sampling frequency in ...
05/23/2006
6980500ATIP bit data generator and method for generating ATIP bit data in optical discs
An ATIP (absolute time in pre-groove) bit data generator free from an uneven duty cycle. The ATIP bit data generator includes an analog processor, a high-frequency clock generator, a first decoder, a sync pattern detector, and a second decoder. The analog processor ...
12/27/2005
6898173Recording and playback of multi-channel digital audio having different resolutions for different channels
Methods and apparatus for recording on DVD-like recording media in which audio content is stored in a high-capacity multi-channel (e.g., six-channel) format are provided. Various channels may use various resolutions. A two-channel audio output may be derived from th...
05/24/2005
6892023Method, medium, and apparatus for recording and reproducing information using cell information
With this invention, at least one of a video file containing video information, a still picture file containing still picture information, and an audio file containing audio information and a management file having management information on a control method of repro...
05/10/2005
6876617Recording medium, recorder, and player
A recording medium, such as an optical disk, a recorder for recording data on the recording medium, and a player for playing back the data are described. Music information can be recorded on the recording medium with higher sound quality than that achieved by a conv...
04/05/2005
6687205Parallel coded spread spectrum communication for data storage
Presently, almost all commercially available data storage systems use saturation recording and binary signaling schemes. Earlier data channels for storage systems utilized various forms of bit by bit peak detection. More recently, various forms of PRML (p...
02/03/2004
6661753Recording medium reproducing device having tempo control function, key control function and key display function reflecting key change according to tempo change
A recording medium reproducing device is provided which device varies a tempo and a key of music reproduced from audio data recorded on a recording medium. The recording medium reproducing device comprises means for calculating a variable width of the key...
12/09/2003
6611486Recording medium recognition information recording method, recording medium recognition information recording apparatus, and recording disc
A unique recording medium having identification information such as a serial number or ID number inherent in the recording media as information signals recorded thereon, which is prevented from being easily erased or rewritten, without inducing the comple...
08/26/2003
6608807Generating a multilevel calibration sequence for precompensation
A system and method are disclosed for generating a calibration sequence of multilevel symbols includes generating subsequences of digital values selected from a range of digital values using a maximal length shift register. The subsequences have a given s...
08/19/2003
6606289Optical recording medium, method for recording/reproducing the optical recording medium and apparatus for recording/reproducing the optical recording medium including a wobbled groove
An optical recording medium for accurately deriving the address information or the disc rotation control information despite narrow track pitch and for recording signals to a high density, and a method and apparatus for recording and/or reproducing such o...
08/12/2003
6552975Methods for establishing recording rates of optical media recorders
Methods for the recording of data to an optical media are provided. In one example, a method includes the determining of the length of a single audio file. A test burn is then performed in which all of the operations required to record the single audio fi...
04/22/2003
6487155Optical disc authentication using alternate data modulation encoding schemes
Apparatus and method for writing data to an optical disc, and for subsequently reading the data therefrom. A first modulation encoding scheme (MES1) is defined to encode input data as data symbols having nominal symbol lengths over a first range. A second...
11/26/2002
6469961Optical recording medium, method for recording/reproducing the optical
An optical recording medium for accurately deriving the address information or the disc rotation control information despite narrow track pitch and for recording signals to a high density, and a method and apparatus for recording and/or reproducing such o...
10/22/2002
6366545Reproducing and recording apparatus, decoding apparatus, recording apparatus, reproducing and recording method, decoding method and recording method
A reproducing and recording apparatus, a decoding apparatus, a recording apparatus, a reproducing and recording method, a decoding method and a recording method are provided in which a computation for changing acoustic characteristics of compressed digita...
04/02/2002
6334026On-screen display format reduces memory bandwidth for time-constrained on-screen display systems
A multimedia decoder is provided that inserts synchronization words into elementary linear pulse-code modulation (LPCM) audio bitstreams. In one embodiment, the multimedia decoder includes a pre-parser, a memory, and an audio decoder module. The pre-parse...
12/25/2001
6327272Data transfer system, transmitter and receiver
A data transfer system transfers frames with more than two data words from a transmitter 100 to at least one receiver 102 in a time-multiplexed manner. The transmitter 100 and receiver(s) 102 are connected via four signal lines: a clock signal 112, a seri...
12/04/2001
6298025Recording and playback of multi-channel digital audio having different resolutions for different channels
Methods and apparatus for recording on DVD-like recording media in which audio content is stored in a high-capacity multi-channel (e.g., six-channel) format are provided. Various channels may use various resolutions. A two-channel audio output may be deri...
10/02/2001
5946354Hard disk drive read channel with half speed timing
A hard disk drive read circuit for d=1 run length limited (RLL) encoded data which processes multiple consecutive data samples in parallel. The circuit of the present invention receives an analog signal from the read head of the hard disk drive. The circu...
08/31/1999
5805537Information record medium, apparatus for recording the same and apparatus for reproducing the same
An information recording apparatus (SS1) is provided with: a signal process device (72, 72A, 72B) for applying a predetermined signal process to record information to be recorded onto an information record medium (1: DVD) to thereby generate processed rec...
09/08/1998
5793549Methods and apparatus for synchronizing read out of data from multiple tracks of an optical storage device
Methods and apparatus are provided for simultaneously reading data from multiple tracks of an optical disk at a high rate. Circuitry is provided for generating a reference data clock independently of spindle motor speed and the spindle motor speed servo c...
08/11/1998
5740142Method and apparatus for fast transfer of data in recording and reproducing system
A fast data transfer system capable of eliminating the need to extremely increase the necessary transmission frequency band for the high-density recording and fast revolution rate of data recording and reproducing system has a recording and reproduced sig...
04/14/1998
5699337Information recording apparatus employing pit edge shifting wherein an error correcting circuit generates an error correction code which is added at part of bits of a predetermined plurality of bits constituting a unit of digital information
The invention provides information recording apparatus, information reproducing apparatus, and information recording medium, capable of correcting an error due to the change in RF signal level caused by noise or the like without a significant reduction in...
12/16/1997
5687157Method of recording and reproducing digital audio signal and apparatus thereof
An audio signal recording and reproduction apparatus enabling a low frequency band signal component to be reproduced by existing reproduction apparatuses and a high frequency band component to be processed as well. A digital audio signal is divided into a...
11/11/1997
5636186Multiple audio channels recording and reproduction apparatus
Information data include audio information data corresponding to M (M: a natural number) types of audio information arbitrarily selected from N (N: a natural number not less than 3, and MࣘN) types of audio information set in advance. An apparatus for re...
06/03/1997
5515352Digital recorder for recording grouped and interleaved digital data of multiple tracks
Audio data of multiple tracks is grouped and stored as if for one track on a hard disk. More specifically, audio data of multiple tracks is interleaved in association with track grouping and is stored in a buffer memory before being recorded on the hard d...
05/07/1996
5511054Apparatus and method for multiplexing encoded data signals and recording medium having multiplexed signals recorded thereon
A multiplexed data stream is formed by encoding a first input signal at a variable bit rate to form a first encoded data signal which is temporarily stored in a first storage device, encoding a second input signal at a constant bit rate to form a second e...
04/23/1996
5473590Method for recording of disk and apparatus for adjusting position of breakpoint of audio data
A method of performing data compression of audio data and sequentially recording the data on a disk in units of the data, each unit being formed of a predetermined amount of the data. In the method, there is provided a means for detecting a breakpoint of ...
12/05/1995
5272691Method for recording and reproducing compressed data
Disclosed is a method for recording and reproducing compressed data on and from a recording medium, in which, when recording and reproducing compressed data compressed by a data compression factor n, the recording medium is divided into successive blocks,...
12/21/1993
5130966Method of recording and reproducing picture information, recording medium, and recording medium playing apparatus
Method of recording and reproducing picture information and a recording medium on which the picture information is recorded by the method, and an apparatus for playing such a recording medium. In addition to a coded information signal, graphic codes inclu...
07/14/1992
5128972Memory package system
Bidirectional transmission of write and read data is effected between a reader/writer unit and a memory module in a contactless manner using electromagnetic induction coupling. A single magnetic induction coupling apparatus is provided for each of the rea...
07/07/1992
5018028Audio signal recording apparatus and reproducing apparatus
A recording apparatus of a type which records signals in an L+R voice track and an L-R voice track on a recording medium is designed to record, in the L-R voice track, an additional discriminating signal for inhibiting the possibility of only a signal or ...
05/21/1991
1    
 
Sign InRegister
Username  
Password   
forgot password?