Voice communications apparatus

Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...

Reexamination Certificate

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C370S355000

Reexamination Certificate

active

07961855

ABSTRACT:
Voice communications apparatus intervenes between a telephone set and a broad-band transmission path that has a communication band broader than a voice band limited by the transmitter and receiver characteristics of the telephone set. The voice communications apparatus includes a transmitter frequency characteristic corrector circuit for correcting the frequency characteristic of a signal input from the telephone set, and a receiver frequency characteristic corrector circuit for correcting the frequency characteristic of a signal to be input to the telephone set.

REFERENCES:
patent: 5070524 (1991-12-01), Mano
patent: 5790604 (1998-08-01), Kelton et al.
patent: 6175565 (2001-01-01), McKinnon et al.
patent: 6288610 (2001-09-01), Miyashita
patent: 6480581 (2002-11-01), Wu et al.
patent: 6791973 (2004-09-01), Yahiro
patent: 6826174 (2004-11-01), Erekson et al.
patent: 7167451 (2007-01-01), Oran
patent: 7391761 (2008-06-01), Ruckart et al.
patent: 7508928 (2009-03-01), Everson et al.
patent: 7542554 (2009-06-01), Binder
patent: 7567548 (2009-07-01), Reynolds et al.
patent: 7574001 (2009-08-01), Fallahi et al.
patent: 2002/0106072 (2002-08-01), Apfel
patent: 2003/0045259 (2003-03-01), Kimata
patent: 2004/0131165 (2004-07-01), Ebisawa et al.
patent: 2004/0170268 (2004-09-01), Hakusui
patent: 2004/0174982 (2004-09-01), Apfel
patent: 2004/0240432 (2004-12-01), Ying et al.
patent: 2005/0047574 (2005-03-01), Reid
patent: 2006/0268836 (2006-11-01), Prentice
patent: 2008/0260139 (2008-10-01), Ruckart et al.
patent: 0 781 022 (1997-06-01), None
patent: 0781022 (1997-06-01), None
patent: 5347661 (1993-12-01), None
patent: 6030090 (1994-02-01), None
patent: 8139789 (1996-05-01), None
patent: 9261517 (1997-10-01), None
patent: 2001036625 (2001-02-01), None
patent: 2001148723 (2001-05-01), None
patent: 2001-257797 (2001-09-01), None
patent: 2001249664 (2001-09-01), None
Takahiro Kikuchi et al., “IP Telephony Becomes Real”, Technical journal Nikkei Electronics No. 829, Business Publications, Inc., Japan, Aug. 26, 2002, vol. 829, pp. 109-135.
Takahiro Kikuchi et al.,“IP Telephony Becomes Real”,Technical journal Nikkei Electronics No. 829,Nikkei Business Publications, Inc., Japan, Aug. 26, 2002, vol. 829, pp. 109-135.
“Telephone Revolution—PC and PDA push for VoIP, whereas Audio-Video Equipment waits and sees”,Technical journal Nikkei Electronics No. 804, Nikkei Business Publications, Inc., Japan, Sep. 10, 2001, vol. 804, pp. 134-141.

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