Appeal No. 2001-2270
Application 09/235,529
We affirm-in-part.
BACKGROUND
The invention relates to a parallel-connected device for
intercepting dialing signals across the tip and ring conductors
of a telephone line by switching in a load that attenuates the
dialing signals by at least 30 dB.
Claim 1 is reproduced below.
1. A parallel-connected dialing signal detection and
transmission-inhibiting device, comprising
a detector for identifying dual-tone multifrequency
dialing signals across the tip and ring conductors of a
telephone link;
a load that connects across the tip and ring conductors
to attenuate the dialing signals by at least 30 dB; and
a controller for controlling a call and the connection
of the load in response to the identified dialing signals.
The examiner relies on the following references:
Gaukel et al. (Gaukel) 5,200,995 April 6, 1993
Stevens et al. (Stevens) 5,590,182 December 31, 1996
(filed June 22, 1994)
Eaton 5,710,808 January 20, 1998
(§ 102(e) date August 11, 1995)
Claims 1-5 and 9-12 stand rejected under 35 U.S.C. § 103(a)
as being unpatentable over Stevens and Eaton.
Claim 6 stands rejected under 35 U.S.C. § 103(a) as being
unpatentable over Stevens, Eaton, and Gaukel.
We refer to the final rejection (Paper No. 7) (pages
referred to as "FR__") and the examiner's answer (Paper No. 10)
- 2 -
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Next
Last modified: November 3, 2007