Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
44 words
High-speed data copying apparatus characterised by data storage means containing a library of stored data items, data access means (13) for accessing selected data items from the data storage means, and copying means (16) for copying the selected data items onto a sequential-storage medium.
Claim 2
Dependent Claim
44 words
High-speed data copying apparatus characterised by data storage means containing a library of stored data items, data access means (13) for accessing selected data items from the data storage means, and copying means (16) for copying the selected data items onto a sequential-storage medium.
Claim 3
Dependent Claim
36 words
Apparatus as claimed in Claim 1 in which the data storage means is digital, the apparatus further including digital to analog conversion means arranged to convert the selected data items into analog form prior to copying.
Claim 4
Dependent Claim
34 words
Apparatus as claimed in Claim 2 in which the signal to noise ratio in the copied data is increased by averaging a plurality of data items in the library for each recorded data item.
Claim 5
Dependent Claim
41 words
Apparatus as claimed in Claim 2 or Claim 3 in which the data access means (13) feeds the selected data items in burst mode to a rate buffer, the output of the rate buffer being fed to the copying means (16).
Claim 6
Dependent Claim
34 words
Apparatus as claimed in any one of Claims 2 to 4 in which the conversion means is disconnected momentarily whenever a new value is written to provide an analog signal substantially without noise glitches.
Claim 7
Dependent Claim
46 words
Apparatus as claimed in any one of the preceding claims in which the data items are stored in the data storage means in compressed form, the apparatus further including data expansion means (16A, 16B, 22A, 22B) arranged to expand the selected data items prior to copying.
Claim 8
Dependent Claim
20 words
Apparatus as claimed in any one of the preceding claims in which the data items are stored in video format.
Claim 9
Dependent Claim
16 words
Apparatus as claimed in Claim 7 in which the data storage means comprises a video disk.
Claim 10
Dependent Claim
28 words
Apparatus as claimed in Claim 7 or Claim 8 in which the data items comprise audio information stored as at least two synchronised channels on each video frame.
Claim 11
Dependent Claim
17 words
Apparatus as claimed in any one of the preceding claims arranged to copy onto auto cassette tape.
Claim 12
Dependent Claim
30 words
Apparatus as claimed in any one of the preceding claims including a communications link for automatic forwarding of information relating to the selected data items, for example for royalty purposes.
Claim 13
Dependent Claim
34 words
Apparatus as claimed in any one of the preceding claims including means (33) for dispensing a finished sequential-storage medium with the selected data items copied thereto, and means for receiving payment for the medium.
Claim 14
Dependent Claim
18 words
Apparatus as claimed in Claim 12 including labelling means (22) and packaging means for the said finished medium.