Facsimile machine for receiving caller-ID information
First Claim
1. A facsimile machine capable of receiving input of data from a switchboard over a telephone circuit during a silent interval between a first ring and a second ring signal, wherein the first ring signal is an initial ring signal of an incoming transmission and the second ring signal is the next ring signal of the incoming transmission after the first ring signal the facsimile machine comprising:
- ring signal detection means for detecting the first ring signal;
clock means for starting measurement of a predetermined duration of time when the ring signal detection means detects the first ring signal and stopping measurement of a predetermined duration of time between an end of the input data and a beginning of the second ring signal; and
telephone circuit closure means for closing a telephone circuit when the clock means stops measurement of the predetermined duration of time.
1 Assignment
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Accused Products
Abstract
A facsimile machine capable of receiving input of data from a switchboard over a telephone circuit during a silent interval between a first ring signal and a second ring signal, and including a network control unit NCU for detecting the first ring signal; a clock for starting measurement of a predetermined duration of time when the NCU detects the first ring signal and stopping measurement of the predetermined duration of time between an end of the data and a beginning of the second ring signal; and a CPU for causing the NCU to close a telephone circuit when the clock stops measurement of the predetermined duration of time.
13 Citations
14 Claims
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1. A facsimile machine capable of receiving input of data from a switchboard over a telephone circuit during a silent interval between a first ring and a second ring signal, wherein the first ring signal is an initial ring signal of an incoming transmission and the second ring signal is the next ring signal of the incoming transmission after the first ring signal the facsimile machine comprising:
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ring signal detection means for detecting the first ring signal; clock means for starting measurement of a predetermined duration of time when the ring signal detection means detects the first ring signal and stopping measurement of a predetermined duration of time between an end of the input data and a beginning of the second ring signal; and telephone circuit closure means for closing a telephone circuit when the clock means stops measurement of the predetermined duration of time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification