GB2313003B - Method of and circuit for baseband signal attenuation - Google Patents

Method of and circuit for baseband signal attenuation

Info

Publication number
GB2313003B
GB2313003B GB9707900A GB9707900A GB2313003B GB 2313003 B GB2313003 B GB 2313003B GB 9707900 A GB9707900 A GB 9707900A GB 9707900 A GB9707900 A GB 9707900A GB 2313003 B GB2313003 B GB 2313003B
Authority
GB
United Kingdom
Prior art keywords
circuit
baseband signal
signal attenuation
attenuation
baseband
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 - Fee Related
Application number
GB9707900A
Other versions
GB2313003A (en
GB9707900D0 (en
Inventor
Craig E Rupp
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of GB9707900D0 publication Critical patent/GB9707900D0/en
Publication of GB2313003A publication Critical patent/GB2313003A/en
Application granted granted Critical
Publication of GB2313003B publication Critical patent/GB2313003B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/18—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging
    • H03M1/186—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedforward mode, i.e. by determining the range to be selected directly from the input signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Analogue/Digital Conversion (AREA)
GB9707900A 1996-05-10 1997-04-18 Method of and circuit for baseband signal attenuation Expired - Fee Related GB2313003B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US64431996A 1996-05-10 1996-05-10

Publications (3)

Publication Number Publication Date
GB9707900D0 GB9707900D0 (en) 1997-06-04
GB2313003A GB2313003A (en) 1997-11-12
GB2313003B true GB2313003B (en) 2000-07-05

Family

ID=24584396

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9707900A Expired - Fee Related GB2313003B (en) 1996-05-10 1997-04-18 Method of and circuit for baseband signal attenuation

Country Status (3)

Country Link
JP (1) JPH10117219A (en)
DE (1) DE19718154A1 (en)
GB (1) GB2313003B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4292655B2 (en) * 1999-11-09 2009-07-08 株式会社デンソー Sampling device
JP2014036420A (en) * 2012-08-10 2014-02-24 Toshiba Corp Signal sampling circuit and radio receiver

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4642693A (en) * 1984-05-22 1987-02-10 Casio Computer Co., Ltd. Television video signal A/D converter apparatus
US4827191A (en) * 1987-09-08 1989-05-02 Motorola, Inc. Adaptive range/DC restoration circuit or use with analog to digital convertors
US4875048A (en) * 1987-08-28 1989-10-17 Hitachi, Ltd. Two-step parallel analog to digital converter
US5345235A (en) * 1993-04-12 1994-09-06 Motorola, Inc. Scaled reference analog-to-digital conversion circuitry and method of operation
WO1996024193A1 (en) * 1995-01-30 1996-08-08 Telefonaktiebolaget Lm Ericsson (Publ) Wide dynamic range analog to digital conversion

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4642693A (en) * 1984-05-22 1987-02-10 Casio Computer Co., Ltd. Television video signal A/D converter apparatus
US4875048A (en) * 1987-08-28 1989-10-17 Hitachi, Ltd. Two-step parallel analog to digital converter
US4827191A (en) * 1987-09-08 1989-05-02 Motorola, Inc. Adaptive range/DC restoration circuit or use with analog to digital convertors
US5345235A (en) * 1993-04-12 1994-09-06 Motorola, Inc. Scaled reference analog-to-digital conversion circuitry and method of operation
WO1996024193A1 (en) * 1995-01-30 1996-08-08 Telefonaktiebolaget Lm Ericsson (Publ) Wide dynamic range analog to digital conversion

Also Published As

Publication number Publication date
JPH10117219A (en) 1998-05-06
GB2313003A (en) 1997-11-12
DE19718154A1 (en) 1997-12-11
GB9707900D0 (en) 1997-06-04

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010418