ES2021974A6 - Circuit for eliminating transient signals for use in telecommunications with CPU control means - Google Patents
Circuit for eliminating transient signals for use in telecommunications with CPU control meansInfo
- Publication number
- ES2021974A6 ES2021974A6 ES9000735A ES9000735A ES2021974A6 ES 2021974 A6 ES2021974 A6 ES 2021974A6 ES 9000735 A ES9000735 A ES 9000735A ES 9000735 A ES9000735 A ES 9000735A ES 2021974 A6 ES2021974 A6 ES 2021974A6
- Authority
- ES
- Spain
- Prior art keywords
- signals
- input signals
- control means
- signal
- telecommunications
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Abstract
Circuit for eliminating transient signals for use in telecommunications with CPU control means, in particular for use in a communications line which connects a subscriber's telephone with the telephone exchange. It comprises means for receiving various input signals and supplying a multitone output signal associated with each of the said input signals, the said receiving means eliminating an undesirable transient present in a predetermined signal of the said input signals, in such a way that none of the output signals includes the undesirable transients and a CPU-actuated control means sensitive to a defined signal of the said input signals received by the said receiving means, in order to generate the said multitone output signals associated with each one of the said input signals. In this way, the subscriber line can be used simultaneously with telephone communication and with a second information signal, each signal being capable of occupying the same bandwidth and the signals can work independently of each other.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/378,419 US4980911A (en) | 1988-08-12 | 1989-07-11 | Transient signal elimination circuit for telecommunications applications with CPU control means |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2021974A6 true ES2021974A6 (en) | 1991-11-16 |
Family
ID=23493068
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES9000735A Expired - Lifetime ES2021974A6 (en) | 1989-07-11 | 1990-03-12 | Circuit for eliminating transient signals for use in telecommunications with CPU control means |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2021974A6 (en) |
-
1990
- 1990-03-12 ES ES9000735A patent/ES2021974A6/en not_active Expired - Lifetime
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19991102 |