GB2140642B - Programmable spectrum shaper - Google Patents

Programmable spectrum shaper

Info

Publication number
GB2140642B
GB2140642B GB08314518A GB8314518A GB2140642B GB 2140642 B GB2140642 B GB 2140642B GB 08314518 A GB08314518 A GB 08314518A GB 8314518 A GB8314518 A GB 8314518A GB 2140642 B GB2140642 B GB 2140642B
Authority
GB
United Kingdom
Prior art keywords
spectrum shaper
programmable spectrum
programmable
shaper
spectrum
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
Application number
GB08314518A
Other versions
GB2140642A (en
GB8314518D0 (en
Inventor
George John Preston Barnes
Michael Stanley Hurley
Anne Ruth Baxandall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB08314518A priority Critical patent/GB2140642B/en
Publication of GB8314518D0 publication Critical patent/GB8314518D0/en
Priority to DE19843417670 priority patent/DE3417670A1/en
Publication of GB2140642A publication Critical patent/GB2140642A/en
Application granted granted Critical
Publication of GB2140642B publication Critical patent/GB2140642B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/24—Arrangements for testing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B29/00—Generation of noise currents and voltages
GB08314518A 1983-05-25 1983-05-25 Programmable spectrum shaper Expired GB2140642B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB08314518A GB2140642B (en) 1983-05-25 1983-05-25 Programmable spectrum shaper
DE19843417670 DE3417670A1 (en) 1983-05-25 1984-05-12 PROGRAMMABLE FILTER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08314518A GB2140642B (en) 1983-05-25 1983-05-25 Programmable spectrum shaper

Publications (3)

Publication Number Publication Date
GB8314518D0 GB8314518D0 (en) 1983-06-29
GB2140642A GB2140642A (en) 1984-11-28
GB2140642B true GB2140642B (en) 1986-08-13

Family

ID=10543367

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08314518A Expired GB2140642B (en) 1983-05-25 1983-05-25 Programmable spectrum shaper

Country Status (2)

Country Link
DE (1) DE3417670A1 (en)
GB (1) GB2140642B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4329705A1 (en) * 1993-09-02 1995-03-09 Froehlich Reimar Dr Ing Circuit arrangement for microcomputer-controllable inductors, capacitors and L/C circuits
GB2344961B (en) * 1998-12-14 2003-11-12 Inventec Corp Telephony tester
MX2010006414A (en) * 2008-04-22 2011-01-12 Afl Telecommunications Llc Universal xdsl demarcation interface with multi-functional capability and signal performance enhancement.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4462009A (en) * 1982-05-25 1984-07-24 Rockwell International Corporation Broadband filter and tuning system

Also Published As

Publication number Publication date
GB2140642A (en) 1984-11-28
DE3417670A1 (en) 1984-11-29
DE3417670C2 (en) 1993-03-04
GB8314518D0 (en) 1983-06-29

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020525