Mode signalling method and apparatus

Details Mode signalling method and apparatus Mode signalling method and apparatus

1997-07-29

1999-10-05

Chan, Wing F.

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

375222, 358434, H04M 1100

Patent

active

059636220

ABSTRACT:
A method for identifying that a data communications device is operable in a predetermined mode. The first step of the method provides for generating a frequency division modulation capabilities signal. The generated signal is limited to a predetermined frequency range. The method further provides for superimposing mode identification information upon the generated signal to form a modified signal. Like the generated signal, the modified signal falls within the predetermined range. The superimposed mode identification information may be applied by frequency modulating the generated signal.

REFERENCES:
patent: 4000371 (1976-12-01), Ogawa
patent: 5490209 (1996-02-01), Kennedy et al.

Affiliated with

Also associated with

Rating

Mode signalling method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mode signalling method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mode signalling method and apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1180473