Signal recording/reproducing method and apparatus in which key information for descrambling is recorded in an area on the signal recording medium
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 27, 1999
Issued Date -
N/A
app pub date -
Jun 2, 1997
filing date -
Feb 18, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
By receiving a key signal for descrambling before reproducing a program signal so as to record the scrambled program signal as it is and descramble and view it by a decoder at the time of reproducing or by reading and reproducing the record, a signal recording/reproducing method and apparatus therefor wherein a possibility that a program which is distributed for specified viewers with payment is viewed by the public at an optional location without payment is eliminated and on the other hand, a viewer can view a broadcasted program freely at any time he wants is provided.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully