Patent EP0878794A2 successfully refreshed from Google Patents.
EP0878794A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Restriction of reproduction or copying of a recorded information signal
Assignee: Sony Corp
•
Filing: 1998-05-06
•
Granted: —
•
Expires: 2018-05-06
Abstract
Abstract When the use permission information detecting unit detects the restrictive use permission information, the time shift start information, and the time shift end information from a reproduced video signal S6 supplied thereto, the use permission information detecting unit forms a use prohibition control signal S7 and supplies it to the use prohibition processing unit. The use prohibition processing unit erases the video signal recorded on a recording medium, on which the restrictive use permission information is add, in accordance with the use prohibition control signal S7 and the like, and makes it impossible to use the video signal repeatedly.
Inventors
- 👤 Akira Ogino
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 04:05
CPC Classifications
G; G11; G11B; G11B20/00; G11B20/00086; G11B20/00731; G11B20/00746; G11B20/00797; G11B19/00; G11B19/02; G11B19/04; G11B20/00666; G11B20/00884; G11B27/00; G11B27/10; G11B27/19; G11B27/28
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
57 words
A method for restricting reproduction of an information
signal, comprising the steps of: storing an information signal on which reproduction
restricting information is added, reproducing the information signal stored, detecting the reproduction restricting information of said
information signal, and restricting repeated reproduction of the information
signal stored, in accordance with the detection of the
reproduction restricting information.
Claim 2
Independent Claim
71 words
A method for restricting reproduction of an information
signal, comprising the steps of: storing an information signal on which reproduction
restricting information and identification information for
indicating to have reproduced specified information are added, reproducing the information signal stored, detecting the reproduction restricting information and the
identification information of said information signal, and restricting repeated reproduction of the information
signal stored, in accordance with the detection of the
reproduction restricting information.
Claim 3
Dependent Claim
28 words
A method for restricting reproduction of an information
signal as claimed in Claim 2, wherein the identification
information is added at one specified position of the
information signal.
Claim 4
Dependent Claim
53 words
A method for restricting reproduction of an information
signal as claimed in Claim 2 or 3, wherein the identification
information is comprised of first position information and
second position information for indicating that a specified
length of interval is read out, which are added on separate
positions in time of the information signal.
Claim 5
Independent Claim
38 words
A method for restricting reproduction of an information
signal as claimed in any one of the preceding claims, wherein
repeated reproduction of the information signal is restricted
by erasing at least a part of the information signal stored.
Claim 6
Independent Claim
37 words
A method for restricting reproduction of an information
signal as claimed in any one of claims 1 to 4, wherein repeated
reproduction of the information signal is restricted by
disabling normal reproduction of the information signal stored.
Claim 7
Independent Claim
45 words
A method for restricting reproduction of an information
signal as claimed in any one of claims 1 to 4, wherein the
information signal is a video signal, and normal reproduction
of the information signal is disabled by making it difficult to
view said video signal.
Claim 8
Dependent Claim
76 words
An information signal reproducing device
comprising: information signal storing means (1) to store an
information signal on which reproduction restricting
information is added, reproduction means (4) to reproduce to read out the
information signal stored, detection means (5) to detect the reproduction restricting
information of said information signal, and reproduction restricting means (6) to restrict repeated
reproduction of the information signal stored, in accordance
with the detection of the reproduction restricting information
in said detection means.
Claim 9
Dependent Claim
99 words
An information signal reproducing device
comprising: information signal storing means (1) to store an
information signal on which reproduction restricting
information and identification information for indicating to
have reproduced specified information are added, reproduction means (4) to reproduce the information signal
stored in said information signal storing means, detection means (5) to detect the reproduction restricting
information and the identification information of said
information signal, and reproduction restricting means (6) to restrict repeated
reproduction of the information signal stored in said
information signal storing means, in accordance with the
detection of the reproduction restricting information in said
detection means.
Claim 10
Dependent Claim
26 words
An information signal reproducing device as claimed in
claim 8 or 9, wherein the identification information is added
at one specified position of the information signal.
Claim 11
Dependent Claim
52 words
An information signal reproducing device as claimed in any
one of claims 8 to 10, wherein the identification information
is comprised of first position information and second position
information for indicating that a specified length of interval
is read out, which are added on separate positions in time of
the information signal.
Claim 12
Dependent Claim
35 words
An information signal reproducing device as claimed in any
one of claims 8 to 11, wherein repeated reproduction of the
information signal is restricted by erasing at least a part of
the information signal stored.
Claim 13
Dependent Claim
44 words
An information signal reproducing device as claimed in any
one of claims 8 to 11, wherein repeated reproduction of the
information signal stored is restricted by disabling at least a
part of reproduction of the information signal stored in the
information signal storing means.
Claim 14
Dependent Claim
41 words
An information signal reproducing device as claimed in any
one of claims 8 to 11, wherein the information signal is a
video signal, and normal reproduction of the information signal
is disabled by making it difficult to view said video signal.
Claim 15
Dependent Claim
25 words
An information signal recording medium on which a main
information signal and reproduction restricting information to
restrict reproduction of said main information signal are
recorded.
Claim 16
Dependent Claim
40 words
An information signal recording medium on which a main
information signal, reproduction restricting information to
restrict reproduction of said main information signal, and
identification information to indicate that specified
information of the main information signal has been reproduced
are recorded.
Claim 17
Dependent Claim
24 words
An information signal recording medium as claimed in claim
16, wherein the identification information is added at one
specified position of the information signal.
Claim 18
Dependent Claim
49 words
An information signal recording medium as claimed in claim
16 or 17, wherein the identification information is comprised
of first position information and second position information
for indicating that a specified length of interval is read out,
which are added on separate positions in time of the
information signal.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.