Multiplex communications – Wide area network – Packet switching
Patent
1989-09-15
1992-06-30
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 851, 3701101, 379 67, 379418, H04J 312
Patent
active
051270048
ABSTRACT:
A tone and announcement PCM code generator (10) outputs to selected multiple channels of a TDM telephonic switching system (12) selected tones and voice announcements stored in a message memory (16) according to command signals from a telephonic switching system central controller (12A) through a share memory (20) to a state machine, or sequencer, (22). The sequencer controls the message memory (16) to provide selected tones and voice announcements through a serial interface (24) on the selected TDM channels. The entire repertoire of tones and announcements can be down loaded from a central memory (12B) of the telephonic switching system (12), and customer designed voice messages from any channel of the telephonic switching system can be stored in the message memory (16) for later local playback or for up loading to the central memory (12B). All tones and announcements are processed uniformly and any tone or announcement can be preselected to any or all channels simultaneously for maximum system flexibility. The entire period of periodic tone signals including the silent segment are stored to enable processing in the same way as continuous tones.
REFERENCES:
patent: 4205203 (1980-05-01), Mehta et al.
patent: 4475189 (1984-10-01), Herr et al.
patent: 4498171 (1985-02-01), Munter et al.
patent: 4541088 (1985-09-01), Sarson
patent: 4571723 (1986-02-01), Lusignan et al.
patent: 4597074 (1986-06-01), Demichelis et al.
patent: 4805172 (1989-02-01), Barbe et al.
patent: 4849966 (1989-07-01), Willis et al.
patent: 4908825 (1990-03-01), Vea
patent: 4979171 (1990-12-01), Ashley
Lenihan John P.
Nguyen Mai T.
Hamann H. F.
Hsu Alpus H.
Olms Douglas W.
Patti C. B.
Rockwell International Corporation
LandOfFree
Tone and announcement message code generator for a telephonic sw does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tone and announcement message code generator for a telephonic sw, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tone and announcement message code generator for a telephonic sw will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1870510