US 2001/0017743 A1Published application

Apparatus for recording and reproducing digital data and method for the same

AssigneeMatsushita Electric Industrial Co., Ltd.

InventorsShinji Hamai, Fumikazu Imai, Chiyoko Matsumi, Akira Iketani

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Abstract

An apparatus for recording and reproducing digital data according to the present invention, includes: a group converter; a controller; a recording converter; a recording unit; a reproducing unit; a reproducing converter; and a group reverse converter, wherein the group converter includes: a block management data generator for receiving the management data from the controller and generating block management data with respect to the corresponding blocked data, the block management data having a variable-length and containing information concerning each blocked data; a group management data generator for receiving the management data and generating group management data containing information concerning the entire grouped data; and a grouped data generator for receiving the blocked data, the block management data, and the group management data, and generating grouped data by arranging the blocked data, the block management data, and the group management data in a predetermined order.

Claims76

Dependent claims

An apparatus for recording and reproducing digital data, comprising:

group conversion means for receiving input blocked data, arranging the blocked data in a predetermined order to generate grouped data, and outputting the grouped data;
control means for receiving a command input together with the input blocked data and generating a control signal and management data based on the command;
recording conversion means for receiving the grouped data and converting the grouped data into a recording signal based on the control signal;
recording means for receiving the recording signal and recording data represented by the recording signal on a record medium;
reproducing means for reproducing from the record medium a signal representing the data recorded in the record medium;
reproducing conversion means for receiving the reproduced signal and converting the reproduced signal into grouped data;
and
group reverse conversion means for receiving the grouped data output from the reproducing conversion means and reconfiguring blocked data from the grouped data,
wherein the group conversion means includes:
block management data generation means for receiving the management data from the control means and generating block management data with respect to the corresponding blocked data, the block management data having a variable-length and containing information concerning each blocked data;
group management data generation means for receiving the management data and generating group management data containing information concerning the entire grouped data;
and
grouped data generation means for receiving the blocked data, the block management data, and the group management data, and generating grouped data by arranging the blocked data, the block management data, and the group management data in a predetermined order.

10 more elements

An apparatus for recording and reproducing digital data, comprising:

group conversion means for receiving input blocked data, arranging the blocked data in a predetermined order, and generating and outputting grouped data;
control means for receiving a command input together with the input blocked data and generating a control signal and management data based on the command;
recording conversion means for receiving the grouped data and converting the grouped data into a recording signal based on the control signal;
recording means for receiving the recording signal and recording data represented by the recording signal on a record medium;
reproducing means for reproducing from the record medium a signal representing the data recorded on the record medium;
reproducing conversion means for receiving the reproduced signal and converting the reproduced signal into grouped data;
and
group reverse conversion means for receiving the grouped data output from the reproducing conversion means and reconfiguring blocked data from the grouped data,
wherein the group conversion means includes:
data transformation means for receiving the blocked data, data-transforming the blocked data, and generating recording blocked data;
block management data generation means for receiving the recording blocked data and the management data and generating block management data with respect to the corresponding recording blocked data, the block management data having a variable-length and containing information concerning the recording blocked data and the blocked data;
group management data generation means for receiving the recording blocked data and the management data and generating group management data containing information concerning the entire grouped data;
and
grouped data generation means for receiving the recording blocked data, the block management data, and the group management data, and generating grouped data by arranging the recording blocked data, the block management data, and the group management data in a predetermined order.

11 more elements

An apparatus for recording and reproducing digital data, comprising:

group conversion means for receiving input blocked data, arranging the blocked data in a predetermined order to generate grouped data, and outputting the grouped data;
control means for receiving a command input together with the input blocked data and generating a control signal and management data based on the command;
recording conversion means for receiving the grouped data and converting the grouped data into a recording signal, including:
data track generation means for arranging the grouped data into data tracks;
preamble track generation means for generating preamble tracks arranged preceding the data tracks;
postamble track generation means for generating postamble tracks arranged following the data tracks;
and
modulation means for receiving data arranged in track groups of the preamble tracks, the data tracks, and the postamble tracks, modulating the data arranged in track groups into a recording signal, and outputting the recording signal,
recording means for receiving the recording signal and recording data represented by the recording signal on a record medium;
reproducing means for reproducing from the record medium a signal representing the data recorded on the record medium;
and
postamble track detection means for detecting postamble tracks previously recorded on the record medium based on the reproduced signal and generating a detecting signal,
wherein the control means controls the recording conversion means based on the detecting signal, and making the recording conversion means start recording of the track groups in a position k tracks after a leading edge of the detected postamble tracks.

10 more elements

An apparatus for recording and reproducing digital data, comprising:

group conversion means for receiving input blocked data, arranging the blocked data in a predetermined order to generate grouped data, and outputting the grouped data;
control means for receiving a command input together with the input blocked data and generating first management data and a control signal based on the command;
recording conversion means for receiving the grouped data output from the group conversion means and converting the grouped data into a recording signal based on the control signal;
recording means for receiving the recording signal and recording data represented by the recording signal on a record medium;
reproducing means for reproducing from the record medium a signal representing the data recorded on the record medium;
reproducing conversion means for converting the reproduced signal into grouped data;
and
group reverse conversion means for receiving the grouped data output from the reproducing conversion means and reconfiguring blocked data from the grouped data,
wherein the control means generates a region control signal for setting at least one data region and management information region on the record medium, generates data region management information concerning the data region, with respect to each of the data region, generates record medium management information for managing the entire record medium, and generates a recording control signal for recording data in the data region and recording the record medium management information and the data region management information in the management information region.

6 more elements

A method for recording and reproducing digital data, comprising the steps of:

(a) arranging input blocked data in a predetermined order to generate grouped data;
(b) generating a control signal and management data based on a command input together with the input blocked data;
(c) converting the grouped data into a recording signal based on the control signal;
(d) recording data represented by the recording signal on a record medium;
(e) reproducing from the record medium a signal representing the data recorded in the record medium;
(f) converting the reproduced signal into grouped data;
and
(g) reconfiguring blocked data from the grouped data,
wherein step (a) includes the steps of:
(a1) generating block management data for the corresponding blocked data based on the management data, the block management data having a variable-length and containing information concerning each blocked data;
(a2) generating group management data containing information concerning the entire grouped data based on the management data;
and
(a3) generating grouped data by arranging the blocked data, the block management data, and the group management data in a predetermined order.

10 more elements

A method for recording and reproducing digital data, comprising the steps of:

(a) arranging input blocked data in a predetermined order to generate grouped data;
(b) generating a control signal and management data based on a command input together with the input blocked data;
(c) converting the grouped data into a recording signal based on the control signal;
(d) recording data represented by the recording signal on a record medium;
(e) reproducing from the record medium a signal representing the data recorded on the record medium;
(f) converting the reproduced signal into grouped data;
and
(g) reconfiguring blocked data from the grouped data,
wherein the step (a) includes the steps of:
(a1) transforming the blocked data and generating recording blocked data;
(a2) generating block management data for recording blocked data, the block management data having a variable-length and containing information concerning the recording blocked data and the blocked data;
(a3) generating group management data containing information concerning the entire grouped data based on the recording blocked data and the management data;
and
(a4) generating grouped data by arranging the recording blocked data, the block management data, and the group management data in a predetermined order.

11 more elements

A method for recording and reproducing digital data, comprising the steps of:

(a) arranging input blocked data in a predetermined order to generate grouped data;
(b) generating a control signal and management data based on a command input together with the input blocked data;
(c) converting the grouped data into a recording signal, step (c) including:
(c1) arranging the grouped data into data tracks;
(c2) generating preamble tracks arranged preceding the data tracks;
(c3) generating postamble tracks arranged following the data tracks;
and
(c4) modulating the data arranged in track groups of the preamble tracks, the data tracks, and the postamble tracks into a recording signal,
(d) recording data represented by the recording signal on a record medium;
(e) reproducing from the record medium a signal representing the data recorded on the record medium;
(f) detecting postamble tracks previously recorded on the record medium based on the reproduced signal and generating a detecting signal;
and
(g) controlling the steps (c1) to (c4) based on the detecting signal, and making recording of the track groups start in a position k tracks after a leading edge of the detected postamble tracks.

10 more elements

A method for recording and reproducing digital data, comprising the steps of:

(a) arranging input blocked data in a predetermined order to generate grouped data, and outputting the grouped data;
(b) generating first management data and a control signal based on a command input together with the input blocked data;
(c) converting the grouped data into a recording signal based on the control signal;
(d) recording data represented by the recording signal on a record medium;
(e) reproducing from the record medium a signal representing the data recorded on the record medium;
(f) converting the reproduced signal into grouped data;
and
(g) reconfiguring blocked data from the grouped data,
wherein step (b) includes the steps of;
(b1) generating a region control signal for setting at least one data region and management information region on the record medium,
(b2) generating data region management information concerning the data region, with respect to each of the data region,
(b3) generating record medium management information for managing the entire record medium, and
(b4) generating a recording control signal for recording data in the data region and recording the record medium management information and the data region management information in the management information region.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 09/801,502Filed 8 Mar 2001
Priority: JP 5-18371426 Jul 1993
Published: 30 Aug 2001
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

G11B 27/107
Programmed access in sequence to addressed parts of tracks of operating record carriers: of operating tapes
G11B 20/1209
With transverse tracks only: for discontinuous data, e.g. digital information signals or computer program data
G11B 27/11
Indexing; Addressing; Timing or synchronising; Measuring tape travel: by using information not detectable on the record carrier
G11B 27/3027
On the same track as the main recording: used signal is digitally coded

Family

Application08/280,598Continuation · filed 26 Jul 1994
Application08/890,731Division · filed 11 Jul 1997
Application08/890,731Continuation · filed 11 Jul 1997
Application09/801,502Division · filed 8 Mar 2001
US 6,424,478 B2Related patent
US 2001/0017743 A1This patent

From the US filing history. Foreign family members aren’t listed.

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