TW209928B - - Google Patents

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Publication number
TW209928B
TW209928B TW080105901A TW80105901A TW209928B TW 209928 B TW209928 B TW 209928B TW 080105901 A TW080105901 A TW 080105901A TW 80105901 A TW80105901 A TW 80105901A TW 209928 B TW209928 B TW 209928B
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Taiwan
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frequency
output
input
signal
counter
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TW080105901A
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Sgs Thomson Microelectronics
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/153Digital output to display device ; Cooperation and interconnection of the display device with other functional units using cathode-ray tubes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G1/00Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
    • G09G1/06Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows
    • G09G1/14Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible
    • G09G1/16Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible the pattern of rectangular co-ordinates extending over the whole area of the screen, i.e. television type raster
    • G09G1/165Details of a display terminal using a CRT, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • G09G1/167Details of the interface to the display terminal specific for a CRT
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G1/00Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
    • G09G1/04Deflection circuits ; Constructional details not otherwise provided for
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G1/00Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
    • G09G1/06Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows
    • G09G1/14Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible
    • G09G1/16Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible the pattern of rectangular co-ordinates extending over the whole area of the screen, i.e. television type raster

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Hardware Design (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Details Of Television Scanning (AREA)
  • Synchronizing For Television (AREA)

Description

A6 B6 五、發明説明(1 ) 描述 本發明偽關於一用以改變多同步監視器水平偏向頻率 之具寬廣操作範圔之自動裝置。 如眾所知,近年來之儀器及監視器裝置市場遭受巨大 變化,尤其是個人電腦部份。 事實上,技術之發展己導引製造商時時以某些更能改 菩以往畫面品質之新圖形標準打開市場,以改菩文學處 理及CAD/CAM (電腦輔助設計/電腦輔肋製造)二者之 功能。 然而,此連缠之發展包含前面所提之監視器,其工作 頻率之重複改變,均有關此監視器之耋面電子束之水平 、垂直偏向待性。 如此雔鑲之變化必須承認加有影像儀器製迪商很大之 努力以跟随市場趨勢。事實上,由於監梘器配有偏向電 路在預定之同步頻率下操作,故假如頻率改受時則此監 梘器就無用。 於是,製造商就有一項需求,偏向電路可在多種同步 頻率下操作。但在符合此需求前,市場並無一可用之積 體零件。 經濟部中央標準局W工消費合作社印製 (請先閲1*?*:面之注意事项再填寫本頁) 裝. .線. 先前技術僅提供由値別零件組成之偏向電路,其壤處 明顯為佔去大部電路區域,使監視器電路加重負擔。並 且,此個別零件價錢高卻不能經常與其功能相配。 -3- 太紙张反疳谪用ΦΚΙ®定樣瀵frNS)帘4 «枚〇丨0 Y 9Q7 4、你) 一ό ^ Α6 _Β6_ 五、發明説明(2 ) (請先閲<^:面之注意事項再填寫本頁) 本發明首要的技術問題即欲提供一自動裝置以改變多 同步監視器水平偏向頻率,其經由寬頻範圍,如10Κ Hz 至100K Hz,具連缠同步之結構與功能特性,並確保在 此使用範圍内各處皆具卓越之功能。 此問題已由前文所指之自動裝置加以解決,其待性為 由一積體電路組成,其結合: 一頻率計以在其輸入接收同步訊號; —相位比較器,具有二輸入輪流在其中一輸入接收該 同步訊號; 一電颸控制之振盪器,適用於輸出依該電壓而變之頻 率訊號並接至該相位比較器之輸出; —計數器,其輸入接至振盪器輸出,而另一端接至頻 率計輸出,該計數器之輸出端接至相位比較器之另一輸 入端同時形成積體電路輸出端。 根據本發明裝置之特性和優點從以下具體實例之詳述 將變得明顯,並藉圖式說明但不受限於有關之伴隨圖式。 圖式中: 圖1偽根據本發明裝置之方塊圖;以及 圖2係圖1裝置所出現之波形訊號代表圖; 經濟部中央標準局貝工消费合作社印製 參考圖式,圖1概要地及簡略地顯示能致動一多同步 監視器之水平偏向頻率fh變化之自動裝置1,因監視器 為習知故未示出。 -4 - 女雀 itefc I? _ B1 tbw W 古押ίβ f rtyTC、田 4 /ΟΙΛ V 9<V7 Λ、你、
經濟部中央標準局貝工消费合作社印製 B6_ 五、發明説明(3 ) 裝置1特別是,但非絕對,設計在一寛頻(10KHZ〜 100KHZ)範圍内操作的。 裝置1包含一積體電路2 ,其結合由頻率計組成之電 路部份3 ,在一輸入端接收同步訊號S1之頻率fh 。 頻率計3在另一輸入端接收時鐘訊號S2,此訊號來自 ,如電路2之外的高精確石英振盪器4。 頻率計3輸出5有η個,毎一個對應接至儲存塊7之 輸入6 ,其中儲存塊7偽用於儲存訊號S1頻率值fh之二 進位(η位元)碼。 儲存塊7依序由η値輸出組成,由8所示,接至計數 器9之輸入端。 計數器9具輸入10接收時鐘訊號S3,此訊號由一電壓 控制振盪器VCO 12之輸出11供應。 VCO 12之振盪頻率隨施加在輸入13之控制電壓Vc之值 而定。 積體電路2之結構進一步由在輸入15接收訊號S1之相 位比較器14組成。該比較器14之另一輸入16直接接至計 數器9之輸出21,其亦是電路2之訊號輸出,在圖2之 曲線19産生一電壓值Vout。 相位比較器14在輸出22産生一Vc’電壓訊號S4並經由據 波電路18成為一電壓Vc施加在振盪器12之控制輸入13, -5 - (請先閲面之注意事项再填寫本頁) 丨裝- 訂‘ 線- 本紙張尺度適用中國國家標準(CNS)甲4規格(210 X 297公釐) 咖 0 Λ6 B6 經濟部中央標準局R工消費合作社印製 五、發明説明(4 ) 其中濾波電路18係用於降低Vc’電壓訊號之漣波。 根據本發明之自動裝置之操作將參考類比同步訊號S1 之起始狀況作一描述,其中S1輸入頻率錶3並具頻率fh 操作範圍10至100 KHz。 利用時鐘訊號S2,頻率計3測量類比訊號S1之頻率, 而亦擔任類比-數位之轉換,因此頻率fh值之二進位碼以 儲存塊7之η値輸入來表不〇 根據振盪器12所供應之訊號S3之值與此種编碼方式, 計數器9輸出一類比訊號,其頻率與訊號S3除以Ν者相 等。 裝置1能影繼所諝之随訊號S1而振動之頻率鎖定。 在這方面,此偽本發明特有之特性,即振盪器12之控 制電壓Vc之值僅在相位比較器14之輸人15和16之訊號S1 和S 3/ N在相同頻率時才趨穩定。 在此狀況下之該訊 號是分別描繪如圖2中之波形17和19,習慣被認為正交 ,同時在比較器14輸出産生一輸出電壓Vc’,其連纗部分 如曲線20所描繪時間内保持穩定。 在頻率fh之值不同於訊號S3/N之頻率值之任何其它狀 況下,電壓Vc’之連縯部分則不穩定且裝置不能在靜止 狀態下操作。結果,振盪器12之控制電壓Vc值亦不穩定 〇 -6 - <諳先閲讀背面之注意事項再塡寫本頁) —裝. 丨線-
經濟部中央標準局R工消費合作社印製 A6 B6 五、發明説明(5 ) 此控制電壓之不穩定狀況産生訊號S3頻率之連缠變化 ,直到該頻率與輸入訊號S1之值fh—致。 頻率計3能以近乎土 1 %之範圍内測量f h之值。於是 ,如頻率fh之變動低於此小範圍,則頻率計3可能無法 偵得此變動。然而,此狀況下,儲存在儲存塊7之编碼 N值仍保持不變而振盪器12將改變其本身操作頻率之值 以允許鎖定f h。 由以上描述之認定,本發明之裝置1允許振盪器12在 輸入訊號S1之寬頻fh範圍内自動調諧。此確定在適當規 劃計數器9時可使振盪器12之頻率與輸入同步訊號fh之 頻率相當。 將本發明具體化之積體電路在達成頻率鎖定時待別快 速,因此大大增強以個別零件製造之先前技術所做成者 之功能。 此積體電路之另一主要優點即所結合之振盪器將在一 遠高於同步訊號頻率之頻率下操作,其可随時保持頻率 穩定,並且提供相當高之性能水準。 靠此電路更有降低成本之優點及容納所有現行多同步 監視器圖形標準頻率範圍之能力。 --------------------------^------,玎------^ <請先閲讀背西之注-事項再塡寫本頁) -7-

Claims (1)

  1. A7 B7 C7 D7 經濟部中央標準局Η工消費合作社印製 六、申請專利範圍 第80 1 0 590 1號「用以改變多同步監视器水平偏向頻率之具 寬廣操作範圍之自動裝置」專利案 (82年5月修正) 1. 一種用以設定多同步監视器水平偏向頻率(fh)之具寬廣 操作範圍之自動裝置,其待戡為由一積體電路0組成, 其結合: —頻率計⑶以在其中之一輸入接收一類比同步訊號 (S1),及在一輸出産生一相對該同步訊號之頻率(fh) 之一數字值(N ); —相位比較器(14),具有兩輸入(15, 16)以依序在其 輸入(15)接收該同步訊號(S1); 一電壓控制振盪器(12),適用於在其輸出産生一依該 輸入之電壓(Vc>而改變頻率之訊號(S3),及連接至該 相位比較器(1 4 )之輸出(22); —計數器©),具有第1輸入接至該振盪器(12)之輸出 ,及第2輸入連接至頻率計⑶之輸出,及其輸出(21)接 至相位比較器之另一輸入(16),同時亦形成積體電路0 之輸出,該計數器Θ)偽可操作的在其輸出産生一訊號(S 3/N),此訊號具有等於以該數字值N除該振盪器(12)之 輸出訊號(S3)頻率之一頻率。 2. 如申請專利範圍第1項之裝置,其中該電路C2)内,頻率 計⑶有多値U)輸出,各個輸出對應接至儲存塊⑺之輸 -8 - (請先閲讀背面之注意事項再填寫本頁) 丨裝· 訂. .線· 本紙張尺度適用中國國家標準(CNS)甲4規格(210 X 297公釐) ό M A7 B7 C7 D7 六、申請專利範圍 入(B,此方塊⑺偽適合儲存一數字值(N),作為同步訊 號(S1)之頻率(fh)值之二進位碼。 3.如申請專利範圍第2項之裝置,其中該計數器之第2輸 入有多値(η)輸入線及該儲存塊⑺有多個(η)輸出線均 連接至該計數器e之多値輸入線。 <4如申請專利範圍第1項之裝置,其中一濾波電路(18)接 建在相位比較器(14)之輸出(22)與電壓控制振盪器(12) 之輸入之間以降低比較器電壓訊號輸出之振盪。 (請先閲讀背-面之:i事項再填寫本頁) 經濟部中央標準局員工消費合作社印製 本紙張尺度適用中國國家標準(CNS)甲4規格(210 X 297公釐)
TW080105901A 1990-06-27 1991-07-29 TW209928B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT02078490A IT1251352B (it) 1990-06-27 1990-06-27 Dispositivo automatico ad ampio spettro operativo per il cambio di frequenza nella deflessione orizzontale di monitor a multisincronismo

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US (2) US5142204A (zh)
EP (1) EP0463418B1 (zh)
JP (1) JP3095813B2 (zh)
KR (1) KR920001314A (zh)
DE (1) DE69129880T2 (zh)
IT (1) IT1251352B (zh)
TW (1) TW209928B (zh)

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DE69129880D1 (de) 1998-09-03
USRE35588E (en) 1997-08-19
DE69129880T2 (de) 1999-04-15
EP0463418A3 (en) 1992-04-29
EP0463418A2 (en) 1992-01-02
IT9020784A0 (it) 1990-06-27
US5142204A (en) 1992-08-25
JP3095813B2 (ja) 2000-10-10
JPH04233586A (ja) 1992-08-21
IT1251352B (it) 1995-05-08
KR920001314A (ko) 1992-01-30
IT9020784A1 (it) 1991-12-28
EP0463418B1 (en) 1998-07-29

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