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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.

1 Abstract

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.

2 Full Text

3 Important Dates

3.1 Priority Date

1977/01/26

3.2 Filing Date

1977/01/26

3.3 Publication Date

1979/01/09

3.4 Grant Date

1979/01/09

4 Inventor

MOED JOHANNES A R

5 Assignee

TRW INC

6 Country

United States

7 Linked Taxonomies

8 Classification

8.1 IPC

H04Q11/04 (inventive)

H04J3/12 (inventive)

8.2 CPC

H04Q11/04 (inventive)

H04J3/125 (inventive, first)

9 Citations

10 Cited By

11 Similar Patents

12 Information Sources

  1. Google Patents
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  2. PubChem
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