EP0328141A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Recording and reproducing apparatus
Assignee: Panasonic Holdings Corp
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Filing: 1989-02-10
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Granted: —
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Expires: 2009-02-10
Abstract
Abstract A composite digital signal received by a recording and reproducing apparatus includes a digital information signal and a control signal. The control signal represents a number of digital copy generation of the associated information signal. The information signal of the received digital composite signal is recorded into recording medium (9). The information signal is reproduced from the recording medium (9). During the reproduction of the information signal, a new control signal is generated which represents a number equal to one plus the number represented by the control signal of the received composite digital signal. The new control signal and the reproduced information signal are combined into a new composite digital signal. The new composite digital signal is outputted. A check is made as to whether or not the number represented by the control signal of the received composite digital signal is equal to a predetermined number. When the number represented by the control signal of the received composite digital signal is equal to the predetermined number, the recording of the information signal of the received composite digital signal is inhibited.
Inventors
- 👤 Hiromichi Shimada
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 14:34
CPC Classifications
G; G11; G11B; G11B20/00; G11B20/10; G11B20/00086; G11B20/00731; G11B20/00746; G11B20/00753; G11B20/00768; G11B27/00; G11B27/02; G11B27/031; G11B27/032; G11B27/10; G11B27/19; G11B27/28; G11B27/30; G11B27/3027; G11B27/3063; G11B5/00; G11B5/86; G11B2220/00; G11B2220/90; G11B2220/91; G11B2220/913
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
197 words
A recording and reproducing apparatus for a digital signal transmitted between reproducing and recording devices, the apparatus comprising: judgment means for judging whether a direct copy of an input digital signal is allowed or inhibited on the basis of a copy control signal, wherein the copy control signal has a plurality of bits and represents whether a direct copy of a digital signal is allowed or inhibited; generation means for, when the judgment means detects that a direct copy of the input digital signal is allowed, generating a copy control subcode signal in accordance with the copy control signal, wherein the copy control subcode signal has a plurality of bits and representing whether a direct copy of an output digital signal, which occurs upon a next reproduction of a copied digital signal, is allowed or inhibited; signal conversion means for, when a digital signal is reproduced from a recording medium and is outputted, outputting a copy control signal representative of a value different from a value of the copy control signal in the input digital signal; and means responsive to the copy control signal for limiting a number of times of directly copying of a digital signal.
Claim 2
Dependent Claim
197 words
A recording and reproducing apparatus for a digital signal transmitted between reproducing and recording devices, the apparatus comprising: judgment means for judging whether a direct copy of an input digital signal is allowed or inhibited on the basis of a copy control signal, wherein the copy control signal has a plurality of bits and represents whether a direct copy of a digital signal is allowed or inhibited; generation means for, when the judgment means detects that a direct copy of the input digital signal is allowed, generating a copy control subcode signal in accordance with the copy control signal, wherein the copy control subcode signal has a plurality of bits and representing whether a direct copy of an output digital signal, which occurs upon a next reproduction of a copied digital signal, is allowed or inhibited; signal conversion means for, when a digital signal is reproduced from a recording medium and is outputted, outputting a copy control signal representative of a value different from a value of the copy control signal in the input digital signal; and means responsive to the copy control signal for limiting a number of times of directly copying of a digital signal.
Claim 3
Dependent Claim
37 words
The apparatus of claim 1 wherein the copy control signal includes a plurality of bits which contain a bit "2" of a channel status of a cotrol signal included in the digital signal transmitted between the devices.
Claim 4
Independent Claim
61 words
An apparatus for reproducing a digital signal from a recording medium, comprising: means for extracting a copy control subcode signal from the digital signal which is reproduced from the recording medium, wherein the copy control subcode signal has a plurality of bits; and signal conversion means for generating a copy control signal on the basis of the copy control subcode signal.
Claim 5
Independent Claim
61 words
An apparatus for reproducing a digital signal from a recording medium, comprising: means for extracting a copy control subcode signal from the digital signal which is reproduced from the recording medium, wherein the copy control subcode signal has a plurality of bits; and signal conversion means for generating a copy control signal on the basis of the copy control subcode signal.
Claim 6
Dependent Claim
37 words
The apparatus of claim 3 wherein the copy control signal includes a plurality of bits which contain a bit "2" of a channel status of a cotrol signal included in the digital signal transmitted between the devices.
Claim 7
Dependent Claim
222 words
A recording and reproducing apparatus for a digital signal transmitted between reproducing and recording devices, the apparatus comprising: judgment means for judging whether a direct copy of an input digital signal is allowed or inhibited on the basis of a copy control signal, wherein the copy control signal has a plurality of bits and represents whether a direct copy of a digital signal is allowed or inhibited; generation means for, when the judgment means detects that a direct copy of the input digital signal is allowed, generating a copy control subcode signal in accordance with the copy control signal, wherein the copy control subcode signal has a plurality of bits and representing whether a direct copy of an output digital signal, which occurs upon a next reproduction of a copied digital signal, is allowed or inhibited; said generation means being operative to, when an analog signal transmitted between the devices is converted into a digital signal and is then recorded, generate a copy control subcode signal representative of a given value; signal conversion means for, when a digital signal is reproduced from a recording medium and is outputted, outputting a copy control signal on the basis of the copy control subcode signal; and means responsive to the copy control signal for limiting a number of times of execution of a copying process.
Claim 8
Dependent Claim
222 words
A recording and reproducing apparatus for a digital signal transmitted between reproducing and recording devices, the apparatus comprising: judgment means for judging whether a direct copy of an input digital signal is allowed or inhibited on the basis of a copy control signal, wherein the copy control signal has a plurality of bits and represents whether a direct copy of a digital signal is allowed or inhibited; generation means for, when the judgment means detects that a direct copy of the input digital signal is allowed, generating a copy control subcode signal in accordance with the copy control signal, wherein the copy control subcode signal has a plurality of bits and representing whether a direct copy of an output digital signal, which occurs upon a next reproduction of a copied digital signal, is allowed or inhibited; said generation means being operative to, when an analog signal transmitted between the devices is converted into a digital signal and is then recorded, generate a copy control subcode signal representative of a given value; signal conversion means for, when a digital signal is reproduced from a recording medium and is outputted, outputting a copy control signal on the basis of the copy control subcode signal; and means responsive to the copy control signal for limiting a number of times of execution of a copying process.
Claim 9
Dependent Claim
243 words
A recording and reproducing apparatus comprising: judgment means for judging whether a copy inhibition bit is present or absent, wherein the copy inhibition bit represents whether a direct copy of a digital signal transmitted between reproducing and recording devices is allowed or inhibited; discrimination means for discriminating a category code which represents which of the devices outputs the digital signal; input setting means for selecting one of a direct copy of a digital signal and a recording of a digital signal converted from an analog signal; generation means for generating a copy control subcode signal in accordance with output signals from the judgment means, the discrimination means, and the input setting means, wherein the copy control subcode signal has a plurality of bits and represents whether a direct copy of an output digital signal, which occurs upon a next reproduction of a copied digital signal, is allowed or inhibited; check means for, when a signal is reproduced from a recording medium, checking a copy control subcode signal; inhibition setting means for setting a copy inhibition bit attached to a digital signal in accordance with an output signal from the check means; category setting means for setting a category code; and means responsive to an output signals from the judgment means and the discrimination means for, when the copy inhibition bit and the category code correspond to given values, inhibiting recording of a digital signal and thereby limiting a number of digital copy generation.
Claim 10
Dependent Claim
243 words
A recording and reproducing apparatus comprising: judgment means for judging whether a copy inhibition bit is present or absent, wherein the copy inhibition bit represents whether a direct copy of a digital signal transmitted between reproducing and recording devices is allowed or inhibited; discrimination means for discriminating a category code which represents which of the devices outputs the digital signal; input setting means for selecting one of a direct copy of a digital signal and a recording of a digital signal converted from an analog signal; generation means for generating a copy control subcode signal in accordance with output signals from the judgment means, the discrimination means, and the input setting means, wherein the copy control subcode signal has a plurality of bits and represents whether a direct copy of an output digital signal, which occurs upon a next reproduction of a copied digital signal, is allowed or inhibited; check means for, when a signal is reproduced from a recording medium, checking a copy control subcode signal; inhibition setting means for setting a copy inhibition bit attached to a digital signal in accordance with an output signal from the check means; category setting means for setting a category code; and means responsive to an output signals from the judgment means and the discrimination means for, when the copy inhibition bit and the category code correspond to given values, inhibiting recording of a digital signal and thereby limiting a number of digital copy generation.
Claim 11
Independent Claim
87 words
An apparatus for reproducing a digital signal from a recording medium, comprising: discrimination means for discriminating a copy control subcode signal in the digital signal which is reproduced from the recording medium, wherein the copy control subcode signal has a plurality of bits; inhibition setting means for setting a copy inhibition bit attached to an output digital signal in accordance with an output signal from the discrimination means; and category setting means for setting a category code representing a type of a device outputting the digital signal.
Claim 12
Independent Claim
87 words
An apparatus for reproducing a digital signal from a recording medium, comprising: discrimination means for discriminating a copy control subcode signal in the digital signal which is reproduced from the recording medium, wherein the copy control subcode signal has a plurality of bits; inhibition setting means for setting a copy inhibition bit attached to an output digital signal in accordance with an output signal from the discrimination means; and category setting means for setting a category code representing a type of a device outputting the digital signal.
Claim 13
Dependent Claim
219 words
A recording and reproducing apparatus comprising: input setting means for selecting one of a direct copy of a digital signal transmitted between reproducing and recording devices and a recording of a digital signal converted from an analog signal transmitted between reproducing and recording devices; generation means for generating a copy control subcode signal, wherein the copy control subcode signal has a plurality of bits, wherein the copy control subcode signal corresponds to a given value when an analog signal is converted into a digital signal and is then recorded, wherein the copy control subcode signal represents whether a direct copy of an output digital signal, which occurs upon a next reproduction of a copied digital signal, is allowed or inhibited; setting means for, when a signal is reproduced from a recording medium and a copy control subcode signal corresponding to a given value is reproduced, attaching a copy inhibition bit to an output digital signal, wherein the copy inhibition bit functions to limit directly copying of a digital signal; and means responsive to the copy inhibition bit for limiting a number of direct copy generation of a digital signal reproduced from a recording medium which is made by converting an analog signal, transmitted between reproducing and recording devices, into a digital signal and by recording the converted digital signal.
Claim 14
Dependent Claim
219 words
A recording and reproducing apparatus comprising: input setting means for selecting one of a direct copy of a digital signal transmitted between reproducing and recording devices and a recording of a digital signal converted from an analog signal transmitted between reproducing and recording devices; generation means for generating a copy control subcode signal, wherein the copy control subcode signal has a plurality of bits, wherein the copy control subcode signal corresponds to a given value when an analog signal is converted into a digital signal and is then recorded, wherein the copy control subcode signal represents whether a direct copy of an output digital signal, which occurs upon a next reproduction of a copied digital signal, is allowed or inhibited; setting means for, when a signal is reproduced from a recording medium and a copy control subcode signal corresponding to a given value is reproduced, attaching a copy inhibition bit to an output digital signal, wherein the copy inhibition bit functions to limit directly copying of a digital signal; and means responsive to the copy inhibition bit for limiting a number of direct copy generation of a digital signal reproduced from a recording medium which is made by converting an analog signal, transmitted between reproducing and recording devices, into a digital signal and by recording the converted digital signal.
Claim 15
Independent Claim
80 words
An apparatus for reproducing a digital signal from a recording medium, comprising: means for reproducing a copy control subcode signal which has a plurality of bits, which corresponds to a given value, and which is included in the digital signal reproduced from the recording medium; and means for, when the copy control subcode signal is reproduced, attaching a copy inhibition bit to an output digital signal, wherein the copy inhibition bit functions to limit directly copying of a digital signal.
Claim 16
Independent Claim
80 words
An apparatus for reproducing a digital signal from a recording medium, comprising: means for reproducing a copy control subcode signal which has a plurality of bits, which corresponds to a given value, and which is included in the digital signal reproduced from the recording medium; and means for, when the copy control subcode signal is reproduced, attaching a copy inhibition bit to an output digital signal, wherein the copy inhibition bit functions to limit directly copying of a digital signal.
Claim 17
Dependent Claim
264 words
A recording and reproducing apparatus comprising: input setting means for selecting one of a direct copy of a digital signal transmitted between reproducing and recording devices and a recording of a digital signal converted from an analog signal transmitted between reproducing and recording devices; generation means for generating a copy control subcode signal, wherein the copy control subcode signal has a plurality of bits, wherein the copy control subcode signal corresponds to a given value when an analog signal is converted into a digital signal and is then recorded, wherein the copy control subcode signal represents whether a direct copy of an output digital signal, which occurs upon a next reproduction of a copied digital signal, is allowed or inhibited; setting means for, when a signal is reproduced from a recording medium, outputting one of first and second category codes, wherein the first category code determines allowance and inhibition of a digital copy in accordance with presence and absence of a copy inhibition bit, and wherein the second category code allows a digital copy regardless of presence and absence of a copy inhibition bit; means for, when a copy control subcode signal corresponding to a given value is reproduced, adding the copy inhibition bit and the second category code to an output digital signal; and means responsive to the copy inhibition bit for limiting a number of direct copy generation of a digital signal reproduced from a recording medium which is made by converting an analog signal, transmitted between reproducing and recording devices, into a digital signal and by recording the converted digital signal.
Claim 18
Dependent Claim
264 words
A recording and reproducing apparatus comprising: input setting means for selecting one of a direct copy of a digital signal transmitted between reproducing and recording devices and a recording of a digital signal converted from an analog signal transmitted between reproducing and recording devices; generation means for generating a copy control subcode signal, wherein the copy control subcode signal has a plurality of bits, wherein the copy control subcode signal corresponds to a given value when an analog signal is converted into a digital signal and is then recorded, wherein the copy control subcode signal represents whether a direct copy of an output digital signal, which occurs upon a next reproduction of a copied digital signal, is allowed or inhibited; setting means for, when a signal is reproduced from a recording medium, outputting one of first and second category codes, wherein the first category code determines allowance and inhibition of a digital copy in accordance with presence and absence of a copy inhibition bit, and wherein the second category code allows a digital copy regardless of presence and absence of a copy inhibition bit; means for, when a copy control subcode signal corresponding to a given value is reproduced, adding the copy inhibition bit and the second category code to an output digital signal; and means responsive to the copy inhibition bit for limiting a number of direct copy generation of a digital signal reproduced from a recording medium which is made by converting an analog signal, transmitted between reproducing and recording devices, into a digital signal and by recording the converted digital signal.
Claim 19
Independent Claim
154 words
An apparatus for reproducing a digital signal from a recording medium, comprising: discrimination means for discriminating a copy control subcode signal and thereby judging whether directly copying of a reproduced digital signal is allowed or inhibited, wherein the copy control subcode signal has a plurality of bits and is contained in the digital signal reproduced from the recording medium; inhibition setting means for setting a copy inhibition bit attached to a reproduced output digital signal; category setting means for outputting one of first and second category codes, wherein the first category code determines allowance and inhibition of a digital copy in accordance with presence and absence of a copy inhibition bit, and wherein the second category code allows a digital copy regardless of presence and absence of a copy inhibition bit; and means for controlling the inhibition setting means and the category setting means in accordance with an output signal from the discrimination means.
Claim 20
Independent Claim
154 words
An apparatus for reproducing a digital signal from a recording medium, comprising: discrimination means for discriminating a copy control subcode signal and thereby judging whether directly copying of a reproduced digital signal is allowed or inhibited, wherein the copy control subcode signal has a plurality of bits and is contained in the digital signal reproduced from the recording medium; inhibition setting means for setting a copy inhibition bit attached to a reproduced output digital signal; category setting means for outputting one of first and second category codes, wherein the first category code determines allowance and inhibition of a digital copy in accordance with presence and absence of a copy inhibition bit, and wherein the second category code allows a digital copy regardless of presence and absence of a copy inhibition bit; and means for controlling the inhibition setting means and the category setting means in accordance with an output signal from the discrimination means.
Claim 21
Dependent Claim
187 words
A recording and reproducing apparatus comprising: means for receiving a composite digital signal which includes a digital information signal and a control signal, wherein the control signal represents a number of digital copy generation of the associated digital information signal; means for recording the information signal of the received digital composite signal into recording medium; means for reproducing the information signal from the recording medium; means for, during said reproduction of the information signal, generating a new control signal representative of a number which equals one plus the number represented by the control signal of the received composite digital signal; means for combining the new control signal and the reproduced information signal into a new composite digital signal; means for outputting the new composite digital signal; means for checking whether or not the number represented by the control signal of the received composite digital signal is equal to a predetermined number; and means for, when the number represented by the control signal of the received composite digital signal is equal to the predetermined number, inhibiting said recording of the information signal of the received composite digital signal.
Claim 22
Dependent Claim
187 words
A recording and reproducing apparatus comprising: means for receiving a composite digital signal which includes a digital information signal and a control signal, wherein the control signal represents a number of digital copy generation of the associated digital information signal; means for recording the information signal of the received digital composite signal into recording medium; means for reproducing the information signal from the recording medium; means for, during said reproduction of the information signal, generating a new control signal representative of a number which equals one plus the number represented by the control signal of the received composite digital signal; means for combining the new control signal and the reproduced information signal into a new composite digital signal; means for outputting the new composite digital signal; means for checking whether or not the number represented by the control signal of the received composite digital signal is equal to a predetermined number; and means for, when the number represented by the control signal of the received composite digital signal is equal to the predetermined number, inhibiting said recording of the information signal of the received composite digital signal.
Claim 23
Dependent Claim
261 words
A recording and reproducing apparatus comprising: means for receiving a composite digital signal which includes a digital information signal and a control signal, wherein the control signal represents a number of digital copy generation of the associated information signal; means for generating an identification signal in accordance with the control signal of the received composite digital signal; means for combining the identification signal and the information signal of the received composite digital signal into a combined digital signal; means for recording the combined digital signal into recording medium; means for reproducing the combined digital signal from the recording medium; means for generating a new control signal on the basis of the identification signal of the reproduced combined digital signal, wherein a number represented by the new control signal equals one plus the number represented by the control signal of the received composite digital signal; means for combining the new control signal and the digital information signal of the reproduced combined digital signal into a new composite digital signal; means for outputting the new composite digital signal; means for checking whether or not the number represented by the control signal of the received composite digital signal is equal to a predetermined number; means for, when the number represented by the control signal of the received composite digital signal is equal to a predetermined number, inhibiting said recording of the combined digital signal; and means for, when the number represented by the control signal of the received composite digital signal differs from the predetermined number, allowing said recording of the combined digital signal.
Claim 24
Dependent Claim
261 words
A recording and reproducing apparatus comprising: means for receiving a composite digital signal which includes a digital information signal and a control signal, wherein the control signal represents a number of digital copy generation of the associated information signal; means for generating an identification signal in accordance with the control signal of the received composite digital signal; means for combining the identification signal and the information signal of the received composite digital signal into a combined digital signal; means for recording the combined digital signal into recording medium; means for reproducing the combined digital signal from the recording medium; means for generating a new control signal on the basis of the identification signal of the reproduced combined digital signal, wherein a number represented by the new control signal equals one plus the number represented by the control signal of the received composite digital signal; means for combining the new control signal and the digital information signal of the reproduced combined digital signal into a new composite digital signal; means for outputting the new composite digital signal; means for checking whether or not the number represented by the control signal of the received composite digital signal is equal to a predetermined number; means for, when the number represented by the control signal of the received composite digital signal is equal to a predetermined number, inhibiting said recording of the combined digital signal; and means for, when the number represented by the control signal of the received composite digital signal differs from the predetermined number, allowing said recording of the combined digital signal.
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