H - Electricity – 04 – M
Patent
H - Electricity
04
M
344/25
H04M 11/06 (2006.01)
Patent
CA 1228146
- 52 - MULTIMODE DATA COMMUNICATION SYSTEM Abstract A data transmission system that can controllably transmit data in three different modes between connected data devices. The first mode transmits data at a 64 Kbps rate, The second mode transmits data at a 56 Kbps rate plus control signals at an 8 Kbps rate. The third mode transmits data and control messages at a rate of up to 50 Kbps between connected terminals or other data devices. For all modes, the data is transmitted by inserting it one byte at a time into an information field of successive ones of cyclically reoccurring time multiplexed frames.
467231
Neumann Jeffrey
Petr David W.
Schramm George W.
Sharp John B.
American Telephone And Telegraph Company
Kirby Eades Gale Baker
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