Cryptography – Cryptanalysis
Patent
1990-11-20
1992-09-01
Tarcza, Thomas H.
Cryptography
Cryptanalysis
380 4, 360 60, 360 68, H04L 900
Patent
active
051446588
ABSTRACT:
A digital audio interface signal repeater capable of displaying how many generations a further copying of a digital audio interface signal is allowed includes: a receiving device for receiving a digital audio interface signal, a demodulator for demodulating predetermined information included in the received digital audio interface signal, and an information display device for displaying the demodulated information. The predetermined information included in the digital audio interface signal received by the receiving device is demodulated by the demodulator. The demodulated information is displayed by the information display device. Since the digital audio interface signal includes information regarding the allowed number of subsequent copying, necessary information such as the allowed number of copying of the digital audio interface signal being processed can be known by confirming a display on the information display device.
REFERENCES:
patent: 4802212 (1989-01-01), Freeman et al.
patent: 4876617 (1989-10-01), Best et al.
patent: 4979210 (1990-12-01), Nagata et al.
patent: 5073925 (1991-12-01), Nagata et al.
"What Will Become of Audio in the 90's: Copyright Issues Related to DAT" Audio Accessory, 14, No. 54 (Autumn 1989, 325-328).
Cain David
Sharp Kabushiki Kaisha
Tarcza Thomas H.
LandOfFree
Repeater of digital audio interface signal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Repeater of digital audio interface signal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Repeater of digital audio interface signal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-774492