Data pulse register/sender for a TDM switching system
Patent
US-4133980-A
Inventor
MOED JOHANNES A R
Assignee
TRW INC
Country
United States
Dates
- Priority:1977/01/26
- Grant:1979/01/09
Description
This web page summarizes information in PubChem about patent US-4133980-A. This includes chemicals mentioned, as reported by PubChem contributors, as well as other content, such as title, abstract, and International Patent Classification (IPC) codes. To read more about how this page was constructed, please visit the PubChem patents help page.
A dial pulse register/sender for use in a telephone system operating in time frames each consisting of a plurality of time slots. The register/sender is capable of detecting and sending supervisory signals in dial pulse format for each time slot. The register/sender includes an integrator for filtering contact bounce, a timer for detecting a change of state in the supervisory signal, a pulse counter for counting the digits received, and sender for sending supervisory signals. Each time slot has one memory location and sequentially uses common logic of the register/sender.
1977/01/26
1977/01/26
1979/01/09
1979/01/09
MOED JOHANNES A R
TRW INC
United States
H04Q11/04 (inventive)
H04J3/12 (inventive)
H04Q11/04 (inventive)
H04J3/125 (inventive, first)
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