Telephonic communications – Supervisory or control line signaling – Signal reception at substation
Patent
1995-02-22
1998-02-03
Matar, Ahmad F.
Telephonic communications
Supervisory or control line signaling
Signal reception at substation
379375, H04M 100
Patent
active
057153086
ABSTRACT:
An alerting device generates a variable alert that is varied to continuously or continually indicate the amount of time that has elapsed since the alert began. The alerting device has an alert signal detector, a timing unit, an alert signal generator and an alert unit. The alert signal detector responds to an activation signal to activate the timing unit, and the alert signal detector responds to a deactivation signal to reset the timing unit. The timing unit generates timing information to the alert signal generator indicating the elapsed time since the occurrence of the activation signal. The alert signal generator responds to the activation signal and to the timing information to generate an alert signal that indicates the elapsed time since the occurrence of the activation signal. The alert signal generator further responds to the deactivation signal to disable the alert signal. The alert unit responds to the alert signal to generate an alert that reflects the elapsed time since the occurrence of the activation signal. The preferred embodiment of the alerting device involves a telephone ringing device that responds to a number of ring commands and generates a corresponding number of ringing sounds. The ringing device counts the number of rings of the telephone that are related to an incoming call, and the ringing device alters the cadence of the telephone ringing to differentiate between the different rings of the telephone. In the preferred embodiment, the ringing device generates a single beep after the first ring of the telephone, two beeps after the second ring of the telephone, and so on.
REFERENCES:
patent: 3343100 (1967-09-01), Medina
patent: 3702904 (1972-11-01), Bard
patent: 4777474 (1988-10-01), Clayton
patent: 4866766 (1989-09-01), Mitzlaff
patent: 5327493 (1994-07-01), Richmond et al.
Matar Ahmad F.
Siemens Business Communication Systems, Inc.
Smith Darryl A.
LandOfFree
Apparatus for generating alerts of varying degrees does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for generating alerts of varying degrees, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for generating alerts of varying degrees will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-669631