Koninklijke Philips Corporation N.v.

U.S. Philips Corporation

Pope Ijtsma

Dirk Hamelinck

Jakob Gerrit Nijboer

Johannis Friso Rendert Blacquiere

Robert Albertus Brondijk

Johannes H M Spruit

Ronald Reindert Drenten

Johannes J L M Van Vlerken

Gijsbert Joseph J Van Den Enden

Jacobus M Eradus

Johannes Hendrikus Maria Spruit

Leon Maria Van De Kerkhof

Johannes Jan Mons

Steven Broeils Luitjens

Paulus Gijsbertus Petrus Weijenbergh

Stephanus Josephus Maria Van Beckhoven

Joze Geelen

Hiroki Ohira

Paulus G P Weijenbergh

A device for recording data and data structures on a write-once storage medium. The device has writing means for recording the data and the data structures and controlling means for generating the data structures and controlling the writing means. The data structures comprise space bit map and defect management structures. The controlling means are adapted to record the data structures at a predefined temporary location on the write-once storage medium and to finalize the write-once storage medium by recording the data structures at a predefined fixed location as defined for a rewritable storage medium.

Device for and method of recording information

Method for recording data on write-once storage medium having space bit map and defect management structures

The invention relates to a method and a recording device for easy and quick access to record carrier management information stored on the record carrier itself. The invention further relates to a record carrier for use in such a method and recording device.

Quick access to disc management information

A device for recording information on a record carrier () is arranged for formatting a multilayer record carrier. The device has formatting means () for formatting the record carrier according which formatting includes de-icing by, in the event that locations in the user data area have not yet been recorded, writing dummy data () on the locations. The formatting means () determine a first radial position () and a first layer (), which first radial position is indicative of a location on the first layer on which user data will be recorded first according to a predefined recording format. Subsequently said de-icing is started by writing of dummy data on a second layer () of the record carrier at the first radial position, opposite the location of the first user data (). Hence a de-iced area () is created opposite the user data ().

De-icing of multi-layer storage media

Recording data and data structures on a write-once storage medium at a predefined fixed location as defined for a rewritable storage medium

A method and apparatus for recording digital information signals on a removable rewritable medium include recording control information on defect management. The recording medium includes predefined locations for enabling booting and/or file system read/write, where at least one of the predefined locations contains the control information.

Method and apparatus for immediately writing or reading files on a disc-like recording medium having control information on defect management

A device for recording records blocks of information on logical addresses on a record carrier at corresponding physical addresses. The logical addresses are translated into the physical addresses in dependence on defect management information that includes defect information on a defective status of physical addresses and remapping information on translating a logical address initially mapped to an initial physical address to an alternate physical address. The device has a real-time storage unit for writing real-time information blocks () to respective initial physical addresses irrespective of the defective status. When recording at a defective status location (), the real-time information block is temporarily stored in a memory (). In a separate period, when the writing of real-time information blocks is suspended, said temporarily stored real-time information blocks are additionally written to alternate physical addresses (). The defect management information () is updated to indicate that the real-time information block is present at both locations.

Defect management for real-time information

A device for recording information records blocks having continuous logical addresses on a record carrier at corresponding physical addresses. The logical addresses are translated into the physical addresses in dependence of defect management information, which includes remapping information indicative for translating a logical address initially mapped to a physical address exhibiting a defect to an alternate physical address in a defect management area. The device has a continuous data detection unit for detecting a logically continuous data, and a defect management reorganizing unit. The physical addresses of remapped logical addresses in the logically continuous data are determined, and the defect management information is reorganized by remapping at least one of the remapped logical addresses to a different defect management area. During read-out the remapped logical addresses in the logically continuous address range are retrieved from a single defect management area.

Device and method for recording information with reorganization of defect management information

A device for recording blocks of information on logical addresses on a write once record carrier at corresponding physical addresses. The logical addresses are translated into the physical addresses by addressing means (). Allocation means () define a continuous addressing space for a user area and divide it into a front area, a middle area and a rear area for sequentially recording information by allocating to them parts of the user area address range. The device has re-allocation means () for splitting the middle area into new areas, specifically when no more data can be stored in the rear area or the front area.

Device for and method of recording information on write-once record carrier

A recording apparatus for recording digital audio/video signals on a removable rewritable disc like recording medium has been proposed. The apparatus comprises writing means () for recording the digital information signals and control means () for controlling the recording. The apparatus is capable of performing initialization, formatting and defect management of a rewritable medium. Further, the apparatus is capable of storing data in replacement areas instead of defect areas, which have been determined to be defective according to rules of the defect management. The control means () are adapted to re-record data from the replacement areas in the defect areas in order to improve playability of digital audio/video signals stored on the medium.

Apparatus for and method of recording digital audio/video signals

A device records information in blocks having logical addresses at a physical address in a track on a record carrier. The logical addresses are translated into the physical addresses in dependence of defect management information, which includes defect entries indicating locations for replacing defective physical addresses. A read-only state of the record carrier is obtainable via a no-replacement state indicated by substantially none of the defect entries being free for use. The device has a read-only unit for setting the record carrier to the read-only state by reading original replacement information indicating a writable state, storing the original replacement information in a hidden area, and writing defect management information that is modified to the no-replacement state. The record carrier may be re-opened by retrieving the original replacement information from the hidden area.

Device and method for recording information

A modified read-ahead (i.e., jump) command, contains a sequential access parameter SAP, JUMPm(X,Y:SAP), for instructing a disc drive to jump to block Y after having read block X. If the SAP parameter has a value indicating that a host, such as a PC, designed to recognize the SAP parameter, deliberately signals a disc drive to jump to a lower address (e.g., Y&#x3c;X), a disc drive designed in accordance with the present invention will comply. A disc drive not designed to recognize the modified read-ahead command may ignore the SAP parameter. A host not designed to recognize the modified read-ahead command is not capable of setting the SAP parameter.

Method and device for utilizing a modified read-ahead command to store data on a record medium

A device for recording records a series of blocks () having continuous logical addresses, e.g. digitally encoded video, on a record carrier at a corresponding physical address range. Some physical addresses are assigned to defect management areas (). The logical addresses are translated into the physical addresses in dependence of the defect management information. The device has contiguous recording means for detecting if the allocated physical address range is interrupted by a subset of physical addresses assigned to a defect management area. If so, the subset of physical addresses is reallocated to the user data area. The series of blocks () is contiguously recorded extending over the subset of physical addresses. The defect management area may be eliminated, shifted to a new location () after the end of the recorded file or shifted to the end of the medium.

Growing community of inventors

Eindhoven, Netherlands

Pope Ijtsma