Internet telephony devices with circuity to announce...

Details Internet telephony devices with circuity to announce... Internet telephony devices with circuity to announce...

2007-03-13

2007-03-13

Anderson, Matthew (Department: 2618)

Telephonic communications

Telephone line or system combined with diverse electrical...

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

C379S088010, C379S088020, C379S372000, C370S352000, C370S354000

Reexamination Certificate

active

09777350

ABSTRACT:
A system detects an incoming telephone call and routes the ring signal to a loudspeaker so that it can be heard at a distance from the telephony device. Once the incoming call has been acknowledged the incoming signal is routed to the headset. New incoming calls are identified by verifying the presence of unique characteristics that are found only in incoming calls. In a conventional telephone the unique characteristic can be a combination of frequencies which are part of the ring signal. The frequencies can be verified by using a bandpass filter which allows only frequencies centered around the ring frequency to pass. Therefore, if a signal of correct frequency is present it will pass through the bandpass filter and activate a switch that routes the signal to the loudspeaker.

REFERENCES:
patent: 4227055 (1980-10-01), Hanson
patent: 5048076 (1991-09-01), Maurer et al.
patent: 5151972 (1992-09-01), Lorenz et al.
patent: 5408529 (1995-04-01), Greaves
patent: 5699421 (1997-12-01), Nirshberg et al.
patent: 5822406 (1998-10-01), Brown
patent: 5926541 (1999-07-01), Irie
patent: 6219409 (2001-04-01), Smith et al.
patent: 6226303 (2001-05-01), Levens et al.
patent: 6229878 (2001-05-01), Moganti
patent: 6364834 (2002-04-01), Reuss et al.
patent: 6480581 (2002-11-01), Wu et al.
patent: 6542585 (2003-04-01), Goodman
patent: 6636506 (2003-10-01), Fan
patent: 6650635 (2003-11-01), Weinstein et al.
patent: 6937724 (2005-08-01), Kozdon et al.

Affiliated with

Also associated with

Rating

Internet telephony devices with circuity to announce... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Internet telephony devices with circuity to announce..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Internet telephony devices with circuity to announce... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3804084