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Comex Systems, Inc. Patents |
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Assignee: Comex Systems, Inc.
Address: Miami, FL
No. of patents: 2
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5729602 |
Programmable multi-tone voice message starting system |
March 17, 1998 |
| A system for detecting the presence, in an audio channel which may contain voice signals, of a tone at a frequency selectable from among a plurality of selectable frequencies. A bandpass filter receives the audio input; its center frequency is selectable in response to a control signal. |
| 4055730 |
Circuit for detecting dial pulses |
October 25, 1977 |
| A circuit for detecting dial pulses at a receiving telephone transmitted from a sending telephone after the telephones are interconnected. Detecting circuits, including bandpass filters and summing and threshold circuits transmit a probable pulse signal. A probable pulse signal indic |
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