...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 8036075 | Disk drive and information processing system having the same A disk drive and an information processing system optimizes the number of rotations of a disk. Data read from a disk and previously-read cache data are temporarily stored in buffer memory. When a total amount of cache data achieved during a given period of time T... | 10/11/2011 |
| 8031569 | Playing data from an optical media drive Example embodiments provide various techniques for playing data from an optical media drive. The optical media drive may detect certain media access information for use in accessing optical media. This media access information is stored in a memory that is configure... | 10/04/2011 |
| 7916589 | Control method of optical disc drive The present invention provides a control method of an optical disc drive, including the steps of: (a) entering a writing state; (b) checking if a reading command for requesting recorded data is received, wherein when the reading command is not received, then continu... | 03/29/2011 |
| 7907485 | Recording device A recording device is equipped with an input unit for inputting information data, a memory for storing the input information data, a writing unit for reading the information data stored in the memory, and writing the information data read from the memory on a disk-l... | 03/15/2011 |
| 7889608 | Information-signal recording and reproducing apparatus, related method, and related computer program A recording medium includes a plurality of signal recording layers. A head reproduces two information signals from respective places in the recording medium on a time sharing basis. The reproduced signals are stored in a buffer memory before being outputted therefro... | 02/15/2011 |
| 7869316 | Determining buffer refilling time when playing back variable bit rate media streams A playback device for playback of a media stream stored on a storage medium, the device includes a controller for controlling the reading, buffering and playback of the media stream. During playback, a buffer is filled by a reader and emptied by a playback unit. At ... | 01/11/2011 |
| 7859962 | Seamless recording of real-time information A device seamlessly records real-time information on a record carrier in a track on a recording layer via a beam of radiation. The device has a real-time information buffer and an interface for transfer of real-time information and commands between a source and the ... | 12/28/2010 |
| 7649816 | Optical disk recording system for recording visible images capable of handling “buffer under run” errors When “buffer under run” (BUR) occurs during recording of a visible image on an optical disk, recording operation is interrupted. As in the case of type A, when BUR1 occurs after data have been transferred through an integral multiple of one revolution, da... | 01/19/2010 |
| 7623426 | Optical disk apparatus An optical disk apparatus which records data on the basis of a predetermined minimum amount of recording data. Recording data supplied from an external device is stored in a buffer memory and then encoded and recorded on an optical disk. The data is recorded in unit... | 11/24/2009 |
| 7433288 | Recording device and method, recording medium and program High bit-rate data and low bit-rate data for the same material are recorded in time division. Meanwhile, the recorded low bit-rate data is read out so as to be used for verification or time-shift playback. In a time-shift playback process, a plurality of tags, each ... | 10/07/2008 |
| 7385902 | Optical disc apparatus An optical disc apparatus includes a pause circuit for pausing data encoders upon receiving a pause signal so that a write operation may be paused without writing dummy data, thereby maintaining data succession. The optical disc apparatus also includes a circuit for... | 06/10/2008 |
| 7353300 | Apparatus to improve the firmware efficiency for a multiframe serial interface A serial network controller contains control logic to analyze and determine a duration of a proper frame time slot. A number of data fields in a transmission is ascertained from an identifier field supplied in a header field. The number of data fields plus a margin ... | 04/01/2008 |
| 7343141 | Concurrent content capturing radio systems and methods An enhanced radio system is disclosed that provides for the capture and playback of one or more radio stations. The user may tune to a station, or scan through stations, rewind to hear what was missed (even while the system is turned off), and fast-forward through u... | 03/11/2008 |
| 7339862 | Optical disc driving system and method for determining rotation speed of optical disc A novel optical disc driving system and method for determining the rotation speed of an optical disc are provided, which allow to determine the highest rotation speed optimal for reading out audio and video data in the optical disc in accordance with the environment... | 03/04/2008 |
| 7339863 | Method of recording information on optical disks at a recording density proportional to the actual information volume and disk nominal capacity A method is designed for recording contents information along a track of an optical disk of a writeable type. A volume detection step is carried out for detecting an actual volume of the contents information to be recorded into the optical disk. A capacity detection... | 03/04/2008 |
| 7328148 | Transferring compressed audio via a playback buffer A method for transferring real time information on a record carrier, typically bitstream audio on an optical disc, which method comprises encoding consecutive segments of the real time information to compressed real time data in frames, and determining a buffer occu... | 02/05/2008 |
| 7315496 | Memory manage method for defect management of an optical disk A method for accessing data of an optical disk with a disk drive. The drive includes a memory; the optical disk has a plurality of data blocks for recording data and a plurality of spare blocks for replacing defect data blocks. While reading data recorded on the opt... | 01/01/2008 |
| RE39953 | Recording apparatus and method, and reproducing apparatus and method A reproducing apparatus for reading, or a recording apparatus for writing, data from or to a disc having pre-formed thereon a pair of concentrical or spiral tracks adjacent to each other and to which a common address is given, is adapted to control the time at which... | 12/25/2007 |
| 7295805 | Digital RF receiver and method of dynamically adjusting a multi-cluster memory buffer A digital radio receiver system and method are provided for receiving signals from multiple transmission sources and providing dynamic data buffering. The system includes an antenna for receiving signals from multiple sources, a tuner for selecting certain frequency... | 11/13/2007 |
| 7274637 | Apparatus and method of storing information An information storage apparatus characterized in that provided with: a data writing unit that writes the data in a data-storable information recording medium; a control information writing unit that writes control information in a predetermined region of the inform... | 09/25/2007 |
| 7269114 | Method and apparatus for controlling recording to optical disc to cope with shock errors A method of controlling recording of data with respect to each track of a once-writable optical disc, includes: detecting whether a shock error occurs during recording of track information; if the shock error is detected, stopping the recording of the track informat... | 09/11/2007 |
| 7269106 | Power efficient scheduling for disc accesses A device for scanning a record carrier has a head for scanning a track for reading and/or writing information. A disc scheduler controls receiving requests for accessing the record carrier, the requests including streaming requests regarding real time information an... | 09/11/2007 |
| 7266073 | Optical disc apparatus, camera apparatus, and method for controlling light emission operation An optical disc apparatus is provided, which comprising a laser light emitting portion for generating laser light for irradiating an optical disc, and a laser control portion for controlling a light emission operation of the laser light emitting portion. The laser c... | 09/04/2007 |
| 7262500 | Interconnection structure In a metal film production apparatus, a copper plate member is etched with a Cl2 gas plasma within a chamber to form a precursor comprising a Cu component and a Cl2 gas; and the temperatures of the copper plate member and a substrate and a diff... | 08/28/2007 |
| 7260037 | Information-processing apparatus, information-processing method and information-processing program A minimum buffer data amount and a minimum reproduction delay time are found from a line approximation graphic form approximating a media read line and used as a basis for determining whether or not data can be reproduced in a real-time manner from a recording mediu... | 08/21/2007 |
| 7245569 | Optical disc apparatus An optical disc apparatus includes a pause circuit for pausing data encoders upon receiving a pause signal so that a write operation may be paused without writing dummy data, thereby maintaining data succession. The optical disc apparatus also includes a circuit for... | 07/17/2007 |
| 7236437 | Shock detector for optical disc recorders and shock-proof recording method using shock signal A shock detector for an optical disc recorder and method for controlling the recording using a shock signal. The shock detector includes a first detecting unit for detecting the amplitude of a first kind of reference signal passing through a band-pass filter and out... | 06/26/2007 |
| 7236436 | Controller for data recorder A controller for controlling interruptions and restarts when writing data to a recording medium by emitting a laser beam against the recording medium. The controller prevents buffer underrun errors. The laser beam is emitted at a high power level when writing data o... | 06/26/2007 |
| 7234102 | Data recording method for optical disk drive A data recording method for an optical disk drive is implemented by the following steps. First, one or more data blocks are encoded and recorded sequentially, and it detects if a buffer under run occurs. If a buffer under run occurs, the recording does not stop imme... | 06/19/2007 |
| 7233552 | Optical disk device capable of recording information data according to ZCLV format An optical disk device for recording data in an optical disk under ZCLV control is provided. The optical disk device divides the optical disk into a plurality of zones, and drives said optical disk at a linear velocity fixed in each zone but varied among the zones. ... | 06/19/2007 |
| 7230891 | Optical disk device recording data on a recordable or rewritable optical disk by setting a recording velocity and a recording power for each of zones on an optical disk An optical disk device record data on a recordable or rewritable optical disk. After a pause and a restart in the constant angular velocity (CAV) method occurs predetermined times due to a cause of a recording error such as a buffer underrun, the data-recording by t... | 06/12/2007 |
| 7228532 | Method and apparatus to facilitate code verification and garbage collection in a platform-independent virtual machine One embodiment of the present invention provides a system that facilitates code verification and garbage collection in a platform-independent virtual machine. The system operates by first receiving a code module written in a platform-independent language. Next, the ... | 06/05/2007 |
| 7227073 | Playlist managing apparatus and method The present invention relates to a playlist managing apparatus and method capable of automatically generating and updating a playlist in response to a dynamic change in taste of a user. Hit rates for respective pieces of audio data are calculated based on output sta... | 06/05/2007 |
| 7215614 | Control method of recording speed in optical disc drives The present invention discloses a control method of recording speed in an optical disc drive. Firstly it is determined whether the recording speed is higher than a data transfer rate from the host to the data buffer in the optical disc drive. If so, the recording sp... | 05/08/2007 |
| 7212471 | Method for operating the tray of an optical disk system A method is for simultaneously operating the tray of an optical disk system and the front panel of the computer cabinet wherein the optical disk system is housed. In the method, the tray of the optical disk system is ejected immediately after the front panel of the ... | 05/01/2007 |
| 7209418 | Method for replacing defective block with good block to record data in optical disc apparatus A method for replacing a defective block with a good block in an optical disk allows data recording operations to be effectively performed. The method temporarily stores data that would have otherwise been recorded in a defective area of an optical disc in a tempora... | 04/24/2007 |
| 7206269 | Optical disk recording/reproducing apparatus with reduced resume time The present invention shortens a time to be elapsed from a recording interruption to a recording restart, thereby realizing a reliable recording restart. In one embodiment, an optical disk apparatus comprises an optical pickup and a processor, which includes a repro... | 04/17/2007 |
| 7206821 | System and method for recording information on a storage medium A method and system for controlling the downloading of information to a computer. Depending upon the characteristics of a storage drive and/or the data which is to be downloaded, the data may be downloaded to a recordable storage medium without first storing the dat... | 04/17/2007 |
| 7190646 | Apparatus for and method of recording and reproducing information An information recording and reproducing apparatus (S) is provided with: a first reproducing device (11) for reproducing audio information from a first information record medium (DK), in which the audio information is recorded; a recording device (28) ... | 03/13/2007 |
| 7190654 | Disc burner and its control method A disc burner and its control method applicable to high speed disc burner, to solve disc burning failure problem due to burning speed exceeding encoding speed. A buffer is inserted to store the encoded data in groups, and these data groups are used in sequence for d... | 03/13/2007 |