Telephonic communications – Call signal generating
Patent
1997-07-10
1998-12-01
Zele, Krista
Telephonic communications
Call signal generating
381 57, H04M 300, H03G 320
Patent
active
058449833
ABSTRACT:
A telephone has a receiver, a transmitter, a control interface, an audio processor and a microprocessor. The audio processor includes a digital signal processor, an input audio unit coupled to a microphone, an output audio unit coupled to a speaker, and a ring signal controller coupled to a transducer/ringer. When an incoming call is received, the audio processor samples the microphone input signal, which is indicative of ambient noise, and performs a spectral analysis of the ambient noise. The audio processor then sets the ring frequency and the ring volume responsive to the ambient noise spectrum and the ring volume control level set by the user.
REFERENCES:
patent: 4076968 (1978-02-01), Watenbarger
patent: 4307385 (1981-12-01), Evans et al.
patent: 4829565 (1989-05-01), Goldberg
patent: 4904992 (1990-02-01), Grothouse
patent: 5093658 (1992-03-01), Grothause
patent: 5170499 (1992-12-01), Grothouse
patent: 5204970 (1993-04-01), Stengel et al.
patent: 5323456 (1994-06-01), Oprea
patent: 5450494 (1995-09-01), Okubo et al.
patent: 5485515 (1996-01-01), Allen et al.
patent: 5563942 (1996-10-01), Tulai
patent: 5615256 (1997-03-01), Yamashita
patent: 5666426 (1997-09-01), Helms
Appiah Charles N.
Ericsson Inc.
Hall David C.
Zele Krista
LandOfFree
Method and apparatus for controlling a telephone ring signal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for controlling a telephone ring signal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for controlling a telephone ring signal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2401528