NL7803340A - Ruisonderdrukker voor fm-signalen. - Google Patents
Ruisonderdrukker voor fm-signalen.Info
- Publication number
- NL7803340A NL7803340A NL7803340A NL7803340A NL7803340A NL 7803340 A NL7803340 A NL 7803340A NL 7803340 A NL7803340 A NL 7803340A NL 7803340 A NL7803340 A NL 7803340A NL 7803340 A NL7803340 A NL 7803340A
- Authority
- NL
- Netherlands
- Prior art keywords
- signals
- noise canceler
- canceler
- noise
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H40/00—Arrangements specially adapted for receiving broadcast information
- H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
- H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
- H04H40/36—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving
- H04H40/45—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving
- H04H40/72—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving for noise suppression
-
- 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
- H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
- H03G3/345—Muting during a short period of time when noise pulses are detected, i.e. blanking
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/1646—Circuits adapted for the reception of stereophonic signals
- H04B1/1653—Detection of the presence of stereo signals and pilot signal regeneration
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Stereo-Broadcasting Methods (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3457777A JPS53120306A (en) | 1977-03-30 | 1977-03-30 | Sound demodulation system |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7803340A true NL7803340A (nl) | 1978-10-03 |
Family
ID=12418168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7803340A NL7803340A (nl) | 1977-03-30 | 1978-03-29 | Ruisonderdrukker voor fm-signalen. |
Country Status (8)
Country | Link |
---|---|
US (1) | US4191851A (nl) |
JP (1) | JPS53120306A (nl) |
DE (1) | DE2813718A1 (nl) |
FR (1) | FR2386205A1 (nl) |
GB (1) | GB1561555A (nl) |
HK (1) | HK57681A (nl) |
MY (1) | MY8200174A (nl) |
NL (1) | NL7803340A (nl) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3130341A1 (de) * | 1980-09-17 | 1982-06-16 | Hitachi, Ltd., Tokyo | Rauschsperre und mit dieser versehener fm-funkempfaenger |
JP2004187074A (ja) * | 2002-12-04 | 2004-07-02 | Pioneer Electronic Corp | ノイズ除去装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3662113A (en) * | 1968-03-27 | 1972-05-09 | Scott Inc H H | Stereophonic demodulator apparatus and automatic monophonic-stereophonic switching circuit |
NL145420B (nl) * | 1969-10-25 | 1975-03-17 | Philips Nv | Schakeling voor het onderdrukken van storingen in een fm radio-ontvanger. |
US3634626A (en) * | 1970-04-06 | 1972-01-11 | Sylvania Electric Prod | Noise-operated automatic stereo to monaural switch for fm receivers |
US3999132A (en) * | 1975-10-31 | 1976-12-21 | Motorola, Inc. | Stereo inhibit circuit |
JPS5816653B2 (ja) * | 1976-03-19 | 1983-04-01 | 三洋電機株式会社 | Fm受信機のパルス性雑音除去装置 |
-
1977
- 1977-03-30 JP JP3457777A patent/JPS53120306A/ja active Pending
-
1978
- 1978-03-28 US US05/891,032 patent/US4191851A/en not_active Expired - Lifetime
- 1978-03-29 NL NL7803340A patent/NL7803340A/nl not_active Application Discontinuation
- 1978-03-30 GB GB12422/78A patent/GB1561555A/en not_active Expired
- 1978-03-30 FR FR7809222A patent/FR2386205A1/fr active Granted
- 1978-03-30 DE DE19782813718 patent/DE2813718A1/de not_active Ceased
-
1981
- 1981-11-26 HK HK576/81A patent/HK57681A/xx unknown
-
1982
- 1982-12-30 MY MY174/82A patent/MY8200174A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
FR2386205A1 (fr) | 1978-10-27 |
JPS53120306A (en) | 1978-10-20 |
FR2386205B1 (nl) | 1981-10-30 |
DE2813718A1 (de) | 1978-10-19 |
HK57681A (en) | 1981-12-04 |
MY8200174A (en) | 1982-12-31 |
US4191851A (en) | 1980-03-04 |
GB1561555A (en) | 1980-02-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB | A search report has been drawn up | ||
A85 | Still pending on 85-01-01 | ||
BV | The patent application has lapsed |