LOUIS JOHN FRANCZ, JR
Pilots at Wychwood Rd, Westfield, NJ

2003004, Mar 13, 2003

Sep 28, 2001

09/966802

Arthur Sheiman - Great Neck NY, US
William Tiso - Sparta NJ, US
Louis Francz - Westfield NJ, US

H03B001/00

327/551000

A method and apparatus for time varying filtering of an audio signal without introducing audible artifacts is presented. The method comprises filtering a segment of the signal using a given filter, and then disengaging the filter in a sequence of graduated steps at the end of the segment. To then filter the next segment of the input signal with a different filter, the new filter is gradually engaged in a sequence of steps at the beginning of such next segment of the input signal. The remainder of the signal in the segment is filtered with the fully engaged filter, until the end of the segment, where it is gradually disengaged, as was the prior filter. The method of switching filters by gradually disengaging a given filter at the end of signal segments and gradually engaging the next filter at the beginning of the next segment is repeated until the entire input signal has been processed. Such method obviates audible artifacts in the filtered signal, while enabling the time varying filtering of an input signal. In a preferred embodiment, once disengaged, a filter is removed so as to decrease processor usage.

4852149, Jul 25, 1989

Jun 29, 1988

7/213068

Nicholas Zwick - Denville NJ
Charles R. Walden Jr. - Montclair NJ
Louis J. Francz - Westfield NJ
Jay L. Gerbehy - Califon NJ

Dialogic Corporation - Parsippany NJ

H04M 350, H04M 714

379 67

A Call Filter System (CFS): (1) logically interfaces between a public telephone network and business customer premises equipment; (2) automatically processes incoming and outgoing calls which are amenable to such intervention; and (3) enlists the aid of human intervention on calls requiring such intervention. The CFS includes a network line interface (NLI) for receiving calls from and placing calls to the public telephone network; a premises line interface (PLI) for receiving calls from and placing calls to the business customer premises equipment; a voice processing means (VPM) which is switchably interconnected to the NLI and/or the PLI for translating audio signals transmitted thereto from the NLI or PLI and for transmitting audio signals to the NLI or PLI; a connection and switching means (CSM) for connecting and switching the NLI to either the PLI or VPM and for connecting and switching the PLI to either the NLI or VPM; and a controller for directing the activities of the NLI, PLI, VPM and CSM to automatically process incoming calls to and outgoing calls from the CFS.