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

Icon_funbox Bizarre Patents

Patent No. 6650315

Mouse device with a built-in printer

A mouse device for use as an input device of a computer is provided that includes a housing in which recording paper is loadable, and a printer unit provided within the housing for printing on the recording paper print information received from the computer.

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 369/47.45 - By a selected relative motion error signal


Subclass of Class 369 - Dynamic information storage or retrieval
Definition: Subject matter wherein the relative motion is controlled
No. of patents: 85
Last issue date: 02/28/2012


1      
NumberTitleIssue Date
8125864Information processing device and method, program, and recording/reproducing device
An information processing device includes: a correction coefficient holding unit configured to hold a correction coefficient which is a ratio between the position of a control target at a start time of control operation, and a detection signal indicating the control...
02/28/2012
8068393Optical disc apparatus including a divided photodetector
An optical disc apparatus includes an emitter which emits a laser beam to a optical disc, a divided photodetector including a first dived portion and a second dived portion disposed in a light path of the reflected beam from the optical disc, and producing a first p...
11/29/2011
7394736Dynamic speed control method for storage device
A method is disclosed for adjusting the rotational speed of a disk drive. According to the method, the proportion of time which the disc drive is reading data from the disc during a unit time T is calculated. Then, the increase of the rotational speed of the motor i...
07/01/2008
7362671Optical disc recording and/or playing apparatus and method
A data recording and/or playing method for recording or playing data to or from an optical disc having a first recording area, where a frame sync signal and the data are recorded, and a second recording area, where a predetermined pattern is preformed, and having ad...
04/22/2008
7355948Detector for detecting information carried by a signal having a sawtooth-like shape
A detector for detecting information carried by a signal having a sawtooth-like shape. The detector includes a low-pass filter for receiving the wobble signal and filtering the wobble signal to generate a filtered signal, a comparator for comparing the wobble signal...
04/08/2008
7333905Method and apparatus for measuring the duty cycle of a digital signal
The disclosed methodology and apparatus measures the duty cycle of a clock signal. A variable duty cycle circuit receives a clock signal from a clock signal generator. The variable duty cycle circuit adjusts the duty cycle of the clock signal by an amount dependent ...
02/19/2008
7292523Recording medium, recording apparatus, and reading apparatus
In a recording material, physical characteristic information of the recording medium, and more specifically, material information representing the material of the disc, is recorded. Accordingly, a recording apparatus and a reading apparatus easily and accurately det...
11/06/2007
7224654Disc drive apparatus
An optical disc drive apparatus (1) comprises: rotating means (4) for rotating an optical disc (2); a sledge (10) radially displaceable with respect to an apparatus frame (3); a platform (20) radially displaceable with respe...
05/29/2007
7173889Recording method, recording apparatus, reproducing method and reproducing apparatus
In the case where data are recorded in a medium, after a specific type of a medium in which recording is performed is set, if it is detected that information is recorded on an address of specific position at which decoding information is to be located, then data at ...
02/06/2007
7170249Electrical phase compensation in BEMF spindle motor control
A method and apparatus for compensating for the asymmetrical phases of a spindle motor in a disc drive are provided. With the apparatus and method, compensation values are learned by sampling speed data during a period of operation of the disc drive where the speed ...
01/30/2007
7116320Display device, method of controlling the same, and projection-type display apparatus
A liquid-crystal display device performs a feedback process. A video signal is written on pixels on a unit by unit basis, each unit including a plurality of pixels (six pixels, for example). Scan pulses output from RGB LCD panels are supplied to a driver IC that sup...
10/03/2006
7106672Method and apparatus for using a frequency difference to adjust a target bit for bit counting
A method and apparatus for normalized bit counting is described. The method comprising incrementing a bit counter using a first clock, and adjusting a target bit based on a difference in frequency between the first clock and a second clock. The method further compri...
09/12/2006
7099247Disk drive apparatus
A disk drive apparatus drives, by means of a motor, a disk mounted thereon so as to reproduce signals recorded in the disk. The disk drive apparatus has an edge detecting unit for generating an edge signal XEG indicating a timing of phase switching, in accordance wi...
08/29/2006
7099248Method of changing a rotating mode between constant angular velocity and constant linear velocity
The present invention relates to a method of changing a recording mode from CAV (Constant Angular Velocity) mode to CLV (Constant Linear Velocity) mode in the middle of recording data to a disk recording medium. A method according to the present invention reads ATIP...
08/29/2006
7084894Optical disc drive focusing apparatus
An optical focusing system is configured to generate a data profile, wherein the data profile is configured to provide signals for operation of an actuator. Application of the signals from the data profile results in focus of optics within a label region of an optic...
08/01/2006
7082086Disc apparatus
A disk apparatus (10) includes an optical pick-up (12) and a DSP (28), and irradiates a laser beam onto a recording surface of a disk recording medium (100) by the optical pick-up. In a case that a time period (access time period) require...
07/25/2006
7065018CLV system and method using PSA lookup
A system and method for controlling operation of a motor system that addresses the design challenges for the small form factor optical disk system. The control system can be operable to read a physical sector address (PSA) from an optical medium, calculate a table i...
06/20/2006
7061194Method and apparatus for controlling constant linear velocity of spindle motor using mirror signal
A method and an apparatus for precisely controlling the rotation speed of a spindle motor in an optical system according to a given condition are provided. The method involves counting in response to a clock signal widths of first and second logic states of an input...
06/13/2006
7042821Disk drive apparatus for optimum motor control
A disk drive apparatus drives, by means of a motor, a disk mounted thereon so as to reproduce signals recorded in the disk. The disk drive apparatus has an edge detecting unit for generating an edge signal XEG indicating a timing of phase switching, in accordance wi...
05/09/2006
7038997Optical disk with prerecorded control information
An optical disk has a central axis and a major face extending in a radial direction from the central axis. The optical disk is rotatable around the central axis at an angular velocity and is formed with a recording layer on the major face. The recording layer is opt...
05/02/2006
7038993Optical disc medium having a plurality of sector groups, a recording method thereof and recorder
An optical disc medium, including a plurality of sector groups each being made up of multiple contiguous sectors on a track, is provided. In this optical disc medium, the location information of each of those sector groups is divided into a predetermined number of i...
05/02/2006
6992962Wobble signal detection circuit having a lowpass filter for detecting a wobble signal with reduced sampling noise
A wobble signal detection circuit is provided for an optical disk apparatus which detects a wobble signal by focusing a light beam into a spot on a pregroove on an optical disk during recording of data onto and reproduction of data from the optical disk, and include...
01/31/2006
6952386Disc speed control device
A disc speed control device for use in a disc player and/or recorder having a pick-up for reading/recording data. The device comprises an inner loop which regulates a determined disc rotation speed value received at its input and an outer loop which delivers this sp...
10/04/2005
6910144Method and configuration for generating a clock pulse in a data processing system having a number of data channels
A method and a configuration for generating a clock pulse in a data processing system having a number of independent, non-synchronous digital data channels, is described. A phase-locked loop (PLL) circuit derives a reference clock pulse, particularly from the data o...
06/21/2005
6898170PMAD/PSA digital feedback system
A system and method for controlling operation of a motor system that addresses the design challenges for the small form factor optical disk system. The control system can be operable to obtain digital feedback from a spin motor. The present invention includes detect...
05/24/2005
6751174Disc reproducing system
A disc playback system according to this invention, as shown in FIG. 1, comprises a pickup 1 for reading information from an information disc 2 on which data are recorded at a constant linear velocity, a disc motor 16 for rotating the informatio...
06/15/2004
6477124Varying the rate at which data appear on an optical disc rotated at a constant linear velocity to prevent unauthorized duplication of the disc
Apparatus and method for recording data to an optical disc to prevent unauthorized duplication of the disc. The disc includes a data placement zone to which first data are written at a first data rate as the disc is rotated at a selected linear velocity. ...
11/05/2002
6445657Disk reproducing device, a disk reproducing method, a disk rotation control method, and a regenerative clock signal generating device
A disk reproducing device comprising: clock signal extracting means for extracting a regenerative clock signal from a reproduced signal; synchronization detecting means for detecting a synchronizing signal from the reproduced signal; extracted clock signa...
09/03/2002
6424608Optical apparatus used for optical disk recording and reproducing apparatus
An optical apparatus for an optical disk recording/reproducing apparatus including a recording laser light emitting device emitting a recording beam for recording data on an optical disk, a reproduction laser light emitting device provided near the record...
07/23/2002
6356523Apparatus for reproducing information recorded on optical disc
An apparatus for reproducing information recorded on an optical disc which can favorably accomplish a time base correction for a read signal in a simple configuration. Also, the apparatus precisely removes jitter components produced when a driving signal ...
03/12/2002
6259661Disk reading apparatus with rotary speed adjustment feature
A disk reading apparatus for reading data recorded on a disk medium is disclosed. The disk reading apparatus comprises a motor for rotating the disk medium, a vibration sensor section for detecting vibrations generating inside the disk reading apparatus a...
07/10/2001
6212143Spindle motor control system for a disk player
In a CLV control of a spindle motor, a clock extracting unit (5) extracts a clock component from the reproduction data, and a CLV control unit (6) controls the spindle motor (8) in accordance with the extracted clock component to rotate the optical disk i...
04/03/2001
6088315Disc recording and/or reproducing apparatus and its motor drive control circuit
A motor rotation control circuit of a disc recording and/or reproducing apparatus has first and second rotation control units and a switching circuit. Information extracted from data read out from a disc is supplied to the first rotation control unit. The...
07/11/2000
6032276Apparatus and method for reading data from a disk type recording media
An apparatus and method for reading data from a disk-type recording medium. The present invention controls the number of revolutions at which the recording medium rotates at according to the results of a defect study to provide error correction and maximu...
02/29/2000
6009056Optical disc data reproducing method and optical disk driver
In the operation to access data on a disk, the data reading operation is enabled before the rotary speed of the spindle motor of the disk is completely regulated to thereby minimize the access time and power consumption of the spindle motor for accelerati...
12/28/1999
5982728Reading information from a disk-shaped recording medium that is rotatable at a plurality of speeds
A reproducing apparatus for disk-shaped recording medium rotationally drives the disk-shaped recording medium at a particular speed to read information from a recording track disposed circumferentially to the center of the recording surface with informati...
11/09/1999
5946279Servo circuit, digital PLL circuit and optical disk device
A speed error detecting portion detects a speed error which is a frequency difference between a reproduced clock signal which is reproduced from a recording medium and a reference clock signal. A first phase error detecting portion detects a phase error w...
08/31/1999
5933399Optical disc recording method and apparatus with variable speed control function
A rate-variable optical disc recording method and apparatus which is suitable for varying a rate at which a user information is recorded on an optical disc pre-formatted by a user support information. The method and apparatus detects a first predetermined...
08/03/1999
5910934Disc reproducing apparatus and method with adjustment of rotation speed between read positions
A disc reproducing apparatus such as a disc player and a method of the same which of the seek time can be shortened at the time of traverse of a pick-up, by calculating a line speed at a read position of a disc before the change of the read position and t...
06/08/1999
5870363Optical disk motor servo and method for closed loop speed control
An optical disk drive in which changes in rotational speed are achieved under closed loop control, avoiding significant undershoots or overshoots in speed, increasing access time and reducing power. The speed control is suitable for use in a CLV system, i...
02/09/1999
1      
 
Sign InRegister
Username  
Password   
forgot password?