Abstract A status detector control comprises temporary storage to receive a sense point address which is coupled to decoders to decode the particular sense point address. A second temporary storage is provided to store the status of an addressed sense point. An error register is provided to store an error signal when a fault detector is coupled to the circuit. A decoded address (units and tens) is coupled from the status detector control to a decoder driver which drives a status detector driver. If fault detection is provided in the circuitry, it is coupled to the status detector driver circuitry. The status detector driver output is coupled through the sense points to a receiver. This receiver comprises a pulse transformer with the secondary coupled to the sense points and coupled via three diodes to ground. A strobe signal produced by the status detector control strobes the primary of the pulse transformer which is output to Schmitt triggers. The output of the Schmitt triggers is coupled to a multiplexer with the decoded address (hundreds and thousands) from the status detector control. The output of the multiplexer is coupled in the status detector control to store the status of the addressed sense points.
Inventors
👤 Thomas J Moorehead
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-29 13:54
CPC Classifications
H; H04; H04Q; H04Q3/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
93 words
A status detector for a communication switching system, said system comprising a data bus and a multiplicity of sense points, said status detector comprising: status control means coupled to said data bus; decoder means coupled to said status control means; detector driver means coupled to said decoder means and to said sense points; and receiver means coupled to said sense points and said status control means to determine the status of said sense points; whereby the status of said sense points may be stored in said status control means from said receiver means.
Claim 2
Dependent Claim
93 words
A status detector for a communication switching system, said system comprising a data bus and a multiplicity of sense points, said status detector comprising: status control means coupled to said data bus; decoder means coupled to said status control means; detector driver means coupled to said decoder means and to said sense points; and receiver means coupled to said sense points and said status control means to determine the status of said sense points; whereby the status of said sense points may be stored in said status control means from said receiver means.
Claim 3
Dependent Claim
28 words
A status detector as claimed in claim 1 further comprising: fault detector means coupled to said detector driver means; whereby said status detector is protected from foreign potentials.
Claim 4
Dependent Claim
42 words
A status detector as claimed in claim 1 wherein said receiver means comprises: pulse transformer means coupled to said sense points; trigger means coupled to said pulse transformer means; and multiplexer means coupled to said trigger means and said status control means.
Claim 5
Dependent Claim
52 words
A status detector as claimed in claim 1 wherein said status control means comprises: address receiver means; address decoder means; status information storage means; error information storage means; and strobe signal generation means; whereby the status of said sense points may be stored in said status control means from said receiver means.
Claim 6
Dependent Claim
53 words
A status detector as claimed in claim 4 wherein said receiver means comprises: pulse transformer means coupled to said sense points and said strobe signal generation means; trigger means coupled to said pulse traNformer means; and multiplexer means coupled to said trigger means, said status information storage means, and said address decoder means.