home *** CD-ROM | disk | FTP | other *** search
- Path: ts1-port4.mas.ualberta.ca!user
- From: Ken.Crossman@ualberta.ca (Ken Crossman)
- Newsgroups: comp.dcom.modems
- Subject: are 'byte-wide' modems possible
- Date: Thu, 11 Apr 1996 13:48:10 -0700
- Organization: University of Alberta
- Message-ID: <Ken.Crossman-1104961348100001@ts1-port4.mas.ualberta.ca>
- NNTP-Posting-Host: ts1-port4.mas.ualberta.ca
-
- The latest word about modems has it that 33.6kb is about the limit. If I
- understand modem transmission correctly, the modem encodes data onto a
- phase-shifted audio carrier, with the speed of transmission governed
- partly by the number of possible phase shifts per cycle. Could a modem be
- designed such that each phase shift represents a complete 8-bit word, ie.
- if there were 256 possible discrete phase angles then 256 (or 2**8) unique
- digital words could be represented? The transmitting modem would encode
- the 8-bit word received from the computer to one of the 256 possible phase
- angles. The receiving modem would translate the phase angle back into the
- 8-bit word it represents. Or is this 'byte-wide' technology now in use?
-
- Don Whyte
- University of Alberta
- Faculty of Pharmacy
-