Device having a digital interface and a network system using suc

Details Device having a digital interface and a network system using suc Device having a digital interface and a network system using suc

1998-03-13

1999-11-16

Cangialosi, Salvatore

Cryptography

Cryptanalysis

H04L 900

Patent

active

059871261

ABSTRACT:
A copy flag detecting circuit in a device detects the copy generation management information. This copy generation management information is inserted in the CIP header of the IEEE 1394 packet for transmission. The copy flag detector of the 1394 interface in the device detects the copy generation management information in the CIP header. According to the detection result, the copy generation managing circuit records new copy generation management information and the recording controlling circuit permits or prohibits recording. Thus, there is no need for a decoding circuit at a receiving device.

REFERENCES:
patent: 5778064 (1998-07-01), Kori et al.
P1394 Standard for a high performance serial bus (IEEE 1394--1995).
Scott Smyers, "Comparison of three new intefaces searching for the post-SCSI design concept", Nikkei Electronics, No. 612, dated Jul. 4, 1994, pp. 152-163.

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