KR930004452B1 - Channel frquency selection circuit - Google Patents

Channel frquency selection circuit

Info

Publication number
KR930004452B1
KR930004452B1 KR9023050A KR900023050A KR930004452B1 KR 930004452 B1 KR930004452 B1 KR 930004452B1 KR 9023050 A KR9023050 A KR 9023050A KR 900023050 A KR900023050 A KR 900023050A KR 930004452 B1 KR930004452 B1 KR 930004452B1
Authority
KR
South Korea
Prior art keywords
channel
frequency
tuner
stage
frquency
Prior art date
Application number
KR9023050A
Other languages
Korean (ko)
Other versions
KR920013904A (en
Inventor
Il-Ju Park
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Priority to KR9023050A priority Critical patent/KR930004452B1/en
Publication of KR920013904A publication Critical patent/KR920013904A/en
Application granted granted Critical
Publication of KR930004452B1 publication Critical patent/KR930004452B1/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

The method tunes a channel frequency to the transmission frequency of a certain channel precisely in a certain time by sequentially varying the receiving frequency of a tuner by 250 KHz interval until the frequency and transmission frequency come close, and reducing the variation interval to 62.5 KHz. The method comprises the three stages; the 1st stage for generating the reception reference frequency data (fo) of a certain channel, the 2nd stage for setting the channel frequency bandwidth of a tuner (TU) to the transmission frequency of the channel, and the 3rd stage for precisely tuning the channel frequency bandwidth of the tuner (TU) to the transmission frequency.
KR9023050A 1990-12-31 1990-12-31 Channel frquency selection circuit KR930004452B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR9023050A KR930004452B1 (en) 1990-12-31 1990-12-31 Channel frquency selection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR9023050A KR930004452B1 (en) 1990-12-31 1990-12-31 Channel frquency selection circuit

Publications (2)

Publication Number Publication Date
KR920013904A KR920013904A (en) 1992-07-30
KR930004452B1 true KR930004452B1 (en) 1993-05-27

Family

ID=19309381

Family Applications (1)

Application Number Title Priority Date Filing Date
KR9023050A KR930004452B1 (en) 1990-12-31 1990-12-31 Channel frquency selection circuit

Country Status (1)

Country Link
KR (1) KR930004452B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100417414B1 (en) * 1996-08-29 2004-04-29 엘지전자 주식회사 Automatic frequency control method for tuning of video equipment

Also Published As

Publication number Publication date
KR920013904A (en) 1992-07-30

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Legal Events

Date Code Title Description
A201 Request for examination
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20020429

Year of fee payment: 10

LAPS Lapse due to unpaid annual fee