TWI328389B - - Google Patents
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1328389 九、發明說明: 【發明所屬之技術領域】 本發明係有關於-種解析度切換電路及方法,特 關於一種接觸式影像感測器之解析度切換電路及方法。 【先前技術】 打閱第f知接觸式影像感㈣切換電路 圖。一控制單元u利用第一控制信號RST、第二控制信 SHR及第三控制信號SHS控制複數個纽號轉換單^ 1—3卜132、133、134的訊號擷取及儲存;以及利用複數 第四控制信號CON1-6 /分別控制感測元件端解析度切換線 路 12 (DPI selection circuit f〇r sen〇r)及位移暫存哭端解 析度切換線路 15 (DPI selecti〇n circuit f〇r shift , 以適當的切換影像感測元件161、162、163、164盥押 數個位移暫存器⑷、142、143、144之控制信號 TG2、TG3、TG4 之輸出。 接下來以一個像素(pixel)解釋習知接觸式影像感測 器切換電路之動作原理。影像感測元件161感測一影像後 產生一訊號,而該訊號經過感測元件端解析度切換線路12 傳輸至光訊號轉換單元131。光訊號轉換單元131利用第 :開關Slla接收第一控制信號RST而將運算放大器〇Ua 輸士端之線路重置後,即接收該訊號並放大之。接著再將 運异放大器011a輸出之信號透過第二開關S12a傳送至第 一,儲存元件Clla儲存,或透過第三開關5133傳送至第 二電=存元件C12a儲存。其中第二開關S12a係接收第二 控制㈣S HR以將影像感測元件161感測之影像的第一影 像信號儲存於第一電錯存元件Clla。而第三開關Sl3a^ 5 1328389 的第以將影像感測树⑹感測之影像 號儲存於第二電健存元件㈣。通常第-影 C信號係為ΐ影像之光信號(ι咖寧ai) 路15二二。,_)°接著位移暫存器端解析度切換線 料I」1制單元11之第四控制信號C〇N5、CON6,來 ?G=暫存器141、142、143、144輪出控制信號仙 Μ 接收:二1328389 IX. Description of the Invention: [Technical Field] The present invention relates to a resolution switching circuit and method, and to a resolution switching circuit and method for a contact image sensor. [Prior Art] Read the f-contact image sense (4) Switching circuit diagram. a control unit u controls, by using the first control signal RST, the second control signal SHR and the third control signal SHS, signal capture and storage of a plurality of button numbers 1-3, 132, 133, 134; The four control signals CON1-6 / respectively control the sensing element end resolution switching line 12 (DPI selection circuit f〇r sen〇r) and the displacement temporary crying end resolution switching line 15 (DPI selecti〇n circuit f〇r shift The output of the control signals TG2, TG3, TG4 of the plurality of shift registers (4), 142, 143, 144 is clamped by the appropriate switching image sensing elements 161, 162, 163, 164. Next is a pixel (pixel) The operation principle of the conventional contact image sensor switching circuit is explained. The image sensing component 161 generates a signal after sensing an image, and the signal is transmitted to the optical signal conversion unit 131 via the sensing component end resolution switching circuit 12. The optical signal conversion unit 131 receives the first control signal RST by using the first switch S11a and resets the line of the operational amplifier 〇Ua, and then receives the signal and amplifies it. Then the output amplifier 011a is output. The number is transmitted to the first through the second switch S12a, the storage element Cl1 is stored, or transmitted to the second electrical storage element C12a through the third switch 5133. The second switch S12a receives the second control (four) S HR to sense the image. The first image signal of the image sensed by the component 161 is stored in the first electrical fault storage component Cl1a, and the third switch S13a^5 1328389 is configured to store the image number sensed by the image sensing tree (6) in the second electrical storage Element (4). Usually the first-shadow C signal is the optical signal of the ΐ image (ι 宁ai) road 15 22., _) ° then the displacement register end resolution switch line material I" 1 unit 11 Four control signals C〇N5, CON6, come? G= register 141, 142, 143, 144 turn out control signal 仙 Receive: two
件cna而導通,使第一電儲存元 巾卜影像信號藉由第—電晶體MP1以電屋形 影,出線路咖輸出。同時當光訊就m 1 2之歧關⑽接收到輸出㈣_TG1而導The device is turned on, so that the image signal of the first electrical storage device is outputted by the first transistor MP1 in the form of a house. At the same time, when the optical signal is on the m 1 2 (10), the output (4) _TG1 is received.
=使第二電儲存元件C12a中之第二影像信號藉由= =,MP2以·形式由第二影像輸出線路⑽2輸J 抑^轉換單元132、133 ' m接收控制信號TG2、 出線路—影像輸A線路〇UT1及第二影像輸 出線路_2輸出各自n像信號與第二 /= the second image signal in the second electrical storage element C12a is received by the second image output line (10) 2 by the second image output line (10) 2, and the control signal TG2 is outputted by the second image output line (12). The output A line 〇 UT1 and the second image output line 2 output respective n image signals and the second /
以供後端相關的影像處理電路處理。 儿For processing by the back end related image processing circuit. child
所以不同的解析度切換,係由控制單元U 制信號_彻4來控制感測元件端解析度切 之動作,及利用第四控制信號CqN5、c〇N6^^ 暫存器端解析度切換線路15之動作才 立移 電路會有下列之缺點: 成k樣的切換 1、雜訊(noise)容易透過感測元件端解析度切換 I2影響光訊賴換料U1接收影像感測元件Therefore, different resolution switching is performed by the control unit U signal__4 to control the sensing element end resolution cutting action, and the fourth control signal CqN5, c〇N6^^ register end resolution switching line The action of the 15th movement circuit has the following disadvantages: Switching into a k-type, noise (noise) is easy to switch through the sensing element end resolution I2 affects the optical resurfacing material U1 receiving image sensing element
感測之影像訊號,以及降低訊號雜 ratio) ° V 6 1328389 二影C與第二影像信號以電壓的方式由第 出,/而」J 0UT1及第二影像輸出端0UT2輸 問題。田毛中信號傳輸距離過長時會有均勻度之 體二1而第V雷光,號轉換單元131中之第-電晶 、:,所^^:=面積™ 4 加。 又彳越後雜,亦造成成本的增 【發明内容】 有鑑於此,本發明担# 電路,其不需麟的解析度⑽解析度切換 切換線路、位移暫存器端解析度感測元件端解析度 雜訊之影響,提高訊號雜訊比^二避免 第-影像信號及第二影像信费^路成本。另外内部 係採開關電容(SC)電路的$式,δ號與暗信號)之輸出, 此可避免信號輸出線路上阻值二用電荷來傳輸信號。藉 過程中失真,以提高均勻度。且t,而造成信號在傳遞 光訊號轉換單元中所設置^雷s發明之電路可省掉習知 所以本發明係提供可以降低電路成本。 包括複數個影像擷取單元,^麵器解析度切換電路, 該影像之u像錢及二2於她—f彡像並產生 單元,係連接於該些影像擷取單_〜像彳§號’·一信號合併 像信號及合併該些第二影像:兀,用於合併該些第一影 該些影像揭取單元及該信號‘二二7控制單元,係連接於 早元,用於控制該些影像 7 移暫存器,係個別 2第-衫像信號傳送至該信號合併單元;及―^^該 疋’係連接於該触移暫存$,朗 又工制 制該些位移暫存器以切換不同解析度。X控制信號控The sensed image signal and the reduced signal ratio) ° V 6 1328389 The second image C and the second image signal are output by voltage, and the "J 0UT1" and the second image output terminal OUT2 are input. When the signal transmission distance in the field is too long, there is a uniformity of the body 2 and the Vth lightning, the first-electrode in the number conversion unit 131, and the ^^:= area TM 4 is added. In addition, the cost is increased. [Inventive content] In view of this, the present invention is a circuit that does not require the resolution of the lin (10) resolution switching switching line, displacement register end resolution sensing element end analysis The effect of noise is increased, and the signal noise ratio is improved to avoid the cost of the first image signal and the second image signal. In addition, the internal output of the switched capacitor (SC) circuit is the output of the $, δ and dark signals. This avoids the resistance of the signal output line to transfer the signal. Borrow distortion during the process to improve uniformity. And t, which causes the signal to be set in the transmitting optical signal conversion unit, can eliminate the conventional circuit. Therefore, the present invention provides that the circuit cost can be reduced. The utility model comprises a plurality of image capturing units, and a mirror switching degree switching circuit, wherein the image is connected to the image capturing unit and the unit is connected to the image capturing unit. Combining a signal with the image and combining the second images: 兀, for combining the first images, the image extracting unit and the signal '22' control unit, connected to the early element, for controlling The image 7 shift register, the individual 2 first-shirt image signal is transmitted to the signal merging unit; and the ―^^ 疋' is connected to the touch temporary storage $, and the processing system performs the displacement temporary Save to switch between different resolutions. X control signal control
—押明另提供—種影像感解析度切換方法,首I =取單元各別產生—第一影像信號及些 琥。然後-解析度控制單元 衫像信 一解析度控制,號、,鮮析度產生對應之 些位移暫存器根‘解=存器。接著該該 信號,以控制該此’像t 複數個輪出控制 單元合併===第最=合併 技術效一有為達成預‘=之 入且具體之瞭解’然而 了由此传-味 非用來對本發明加以限制者。丨k供多考與說明用,並 【實施方式】 能方:閱像感測器解析度切換電路Μ 制早^、複數個影像揭 、電路=包括—控 存器241〜%、—解析度控制單‘ΓίΐΓ移暫 27。控制單元21發 早兀25及一k唬合併單元 信號SHR及一第:、制信號RST、-第二控制 弟—控制信號SHS去控制第—影像榻取單 元231、帛二影像操取單元232、、第n影像操取單元 23n^,影像的擷取及影像信號的儲存;另外利用一第四控 制,號CLK㈣韻合併單元27,使㈣合併單元27透 過第-影像輸出線路〇UTp及第二影像輸出線路〇UTN接 收該些,像擷取單元231〜23n所產生的影像信號。而解析 度控制早7G 2 5係根據解析度之城,輸出對應之複數個解 析度=制㈣CC1〜CCf (解析度控制信號的控制數量 為2 ,其根據解析度切換段數m而有所不同)以控制位 移暫存器241〜24η信號之輸出。而位移暫存器241〜2如 根據該些解析度控繼號CC1〜π2ηΜ輸出複數個輸出控 制信號TG1〜TGn’以控制該些影像操取單元231〜23n輸 出所擷取之祕信號至信號合併單元27。本發明係藉由各 控制信號(RST、SHR、SHS、CLK、TG1〜TGn)時序之 控制,以對應解析度之要求執行影像之擷取及傳送。其中 該些影像擷取單元231〜23n可排列呈線狀之架構,以操取 目標影像。 接下來將進一步說明各控制信號(RST、SHR、sjis、 CLK、TG1〜TGn)控制該些影像擷取單元231〜23n及信 號合併單元27之動作原理。 ° 首先以第一影像擷取單元231為例,說明第一影像揭 =單元231接收控制單丨21所產生之第一控制信號rst、 第二控制信號SHR、第三控制信號SHS及位移暫存器24i 所產生之輸出控制信號TG1而產生與輸出一第—影像作 號及一第二影像信號的動作原理。請參閱第三圖,係為^ 發明影像_取單元之電路圖。第—影像操取單元23ι中係 包括一光訊號轉換單元2311、第二開關S12、第三開關 及第-H關ϋ第五開MS15、第·'電儲存元件cn 括其中光訊號轉換單元加中又包 像m Τ第一開關SU、運算放大器oil及影 豕α測兀件d卜光訊號轉換單元2 > rst使第-開關S11導 接收弟一控制信號 轉換單元2311#€ 讓重置電源vm將光訊號 而再將該影像傳送至運算放大器牛D1⑽一衫像 oil將放大後之影像信號分別透過第二算放大: 的第-影像信_存於第_ _存,1將該影像 «S13 2°通常第-影像信號與第二 :^子兀 信號U咖Si_)與暗信號為該f象之光- Amy also provides a method for switching the image sense resolution. The first I = fetch unit is generated separately - the first image signal and some amber. Then, the resolution control unit, the image recognition signal, the resolution control, the number, and the resolution are generated corresponding to the displacement register roots 'solution=store. Then the signal is controlled to control the 'image t's multiple rounds of control unit combination === the most = merge technology effect has a pre-'= into the entry and specific understanding 'however, this is passed - taste It is intended to limit the invention.丨k for multiple test and explanation, and [Implementation] Energy side: reading sensor resolution switching circuit 早 early ^, multiple image uncovering, circuit = including - control 241~%, - resolution The control order 'ΓίΐΓ shifts the temporary 27. The control unit 21 sends the early 兀25 and a k唬 merge unit signal SHR and a first:, the signal RST, the second control brother-control signal SHS to control the first image capturing unit 231 and the second image capturing unit 232. The nth image capturing unit 23n^, image capturing and image signal storage; and further using a fourth control, number CLK (four) rhyme merging unit 27, so that (4) merging unit 27 transmits through the first image output line 〇UTp and The two image output lines 〇UTN receive the image signals generated by the capture units 231 to 23n. The resolution control is 7G 2 5 according to the resolution city, and the output corresponds to multiple resolutions = system (4) CC1 ~ CCf (the number of control of the resolution control signal is 2, which varies according to the resolution switching number m) ) to control the output of the signals of the shift registers 241 to 24n. The shift registers 241 1-2 output a plurality of output control signals TG1 TG TGn ′ according to the resolution control numbers CC1 ~ π 2 η 以 to control the image capturing units 231 -23 23 n to output the captured secret signals to the signals. Merging unit 27. The present invention controls the capture and transmission of images in response to resolution requirements by controlling the timing of each control signal (RST, SHR, SHS, CLK, TG1 to TGn). The image capturing units 231 to 23n may be arranged in a line structure to capture the target image. Next, the operation principle of each of the control signals (RST, SHR, sjis, CLK, TG1 to TGn) for controlling the image capturing units 231 to 23n and the signal combining unit 27 will be further explained. The first image capturing unit 231 is used as an example to describe that the first image detecting unit 231 receives the first control signal rst, the second control signal SHR, the third control signal SHS, and the displacement temporary storage generated by the control unit 21. The output control signal TG1 generated by the device 24i generates and outputs an operation principle of a first image number and a second image signal. Please refer to the third figure, which is the circuit diagram of the invention image_taking unit. The first image capturing unit 231 includes an optical signal converting unit 2311, a second switch S12, a third switch, and an -H switch, a fifth open MS15, and an 'electric storage element cn including an optical signal conversion unit. In the package, the first switch SU, the operational amplifier oil, and the image sensing device d optical signal conversion unit 2 > rst causes the first switch S11 to receive the control signal conversion unit 2311#€ The power supply vm transmits the image to the operational amplifier, the cow D1 (10), the shirt, the oil, and the amplified image signal, respectively, through the second calculation: the first image signal is stored in the first __, 1 image «S13 2° usually the first image signal and the second: ^ 兀 signal U café Si_) and the dark signal is the light of the f image
Sl2係根據第二控制信號SHR來動作a而第一開關 儲存於第—電儲存元件⑶;第三sc信號 制信號S H S來動作,以將第二影像 =據弟二控 元件⑴。接著第四開關S14及第二電儲存 C]7 _ 弟衫像L说及儲存於第二電儲 象信號分別由第一影像輸出線路崎及第 一知像輸出線路0UTN輸出。 及第 理’第二影像擷取單元232接收第 RST控制内部之光訊號轉換單元(圖未示) =唬 2信號SHR及第三控制信號SHS控制内部第=控 未不)及第三開關(圖未示)之動作 幵,(圖 號及第二影像信號,再由位移暫存器242芯信 制信號TG2來控制内部第四開關(圖未示)及第控 不立闲關Q圖 之動作’以由第—影像輸出線路 =ί路第二影像揭取單元232之第二= 接此_至第η影像触單元仏, —影像信歧第二雜減躲單元23n之第 制說明信號合併單元27 ·制單元21接收第四控 ^clk與由影像擷取單元231〜23 = 影像;號之動作原理。而本發明信號二= 單施例,首先參閱第四A圖本發明信號合併 例之電路圖。_合併料 入雙端輸出之運算放大器〇27、第六開關%、第 =、電容C271及電容咖。其中第六開關%與 器〇27 Λ並聯:並錢接雙端輸人雙端輸出之運算放大 門S7命弟仏破接收端1N1與第一輸出端⑽。而第七 =^與電容C272並聯,並且連接雙端輸人雙端輸出之 η.、〇27之第二信號接收端IN2與第二輸出端 OUTP信號接收端IN1係連接於第一影像輸出線路 第收第—影像㈣;第二輸出端0Τ2係連接於 像輸出線路0UTN,以接收第二影像信號。第六開 繼7係接收第四控制信號,以重置第-影 及第二影像輪出線路0UTN,同時雙端 輪出之運算放大器027接影像信號及第二 而雙端輸入雙端輸出之運算放大器027係將所 將所丄 =一景?像信號合併’以產生第-合併信號;以及 影像信號合併,以產生第二合併信號。 弟—輸出端0T1及第二輸出端OT2輪出第-合併 1328389 信號與第二合併信號間之差值。Sl2 operates a according to the second control signal SHR, and the first switch is stored in the first electric storage element (3); the third sc signal is generated in the signal S H S to operate the second image = the second control element (1). Then, the fourth switch S14 and the second electric storage C]7 _ the shirt image L and the second electric storage image signal are respectively output by the first image output line and the first image output line OUTN. And the second image capturing unit 232 receives the optical signal conversion unit (not shown) in the RST control = 唬2 signal SHR and the third control signal SHS controls the internal control and the third switch ( The action of the figure (not shown), (the figure number and the second image signal, and then the internal register signal TG2 of the displacement register 242 controls the internal fourth switch (not shown) and the second control of the Q map. The action 'by the first image output line=the second image of the second image extracting unit 232= is connected to the nth image touch unit 仏, the image signal difference second impurity reduction unit 23n the first description signal Merging unit 27 · The unit 21 receives the fourth control unit and the operation principle of the image capturing unit 231~23 = image; the signal of the present invention is a single embodiment, first referring to the fourth A picture signal combining The circuit diagram of the example. _ combined into the double-ended output of the operational amplifier 〇27, the sixth switch%, the =, the capacitor C271 and the capacitor coffee. The sixth switch% and the device 〇27 Λ in parallel: and money connected to the double-ended input The double-ended output operation amplification gate S7 is broken, the receiving end 1N1 and the first output end (10), and the seventh=^ is connected in parallel with the capacitor C272, and the second signal receiving end IN2 and the second output end OUTP signal receiving end IN1 connected to the double-ended input double-ended output are connected to the first image. The output line receives the first image (four); the second output terminal 0Τ2 is connected to the image output line OUTN to receive the second image signal. The sixth circuit 7 receives the fourth control signal to reset the first image and the second image. The image wheel exits the line OUTN, and the op amp 027 with the double-ended wheel is connected to the image signal and the second and double-ended input double-ended output of the operational amplifier 027 combines the image signal with the image signal to generate the first Combining the signals; and combining the image signals to generate a second combined signal. The output terminal 0T1 and the second output terminal OT2 rotate the difference between the first-combined 1328389 signal and the second combined signal.
再來請參閱第四B圖,係為本發明信號合併單元第二 較佳實施例之電路圖。如圖所示信號合併單元27B包括一 第一運算放大器027卜一第二運算放大器〇272、第八開 關S8、第九開關S9、電容C273及電容C274。其中第八 開關S8與電容C273並聯’並且連接第一運算放大器〇271 之第一信號接收端IN71與第一輸出端〇Τ71。其中第九開 關S9與電容C274並聯’並且連接第二運算放大器0272 之第二信號接收端IN72與第二輪出端OT72。第一信號接 收端ΙΝ71係連接於第一影像輸出線路〇υτρ,以接收第 一影像信號;第二輸出端ΟΤ72係連接於第二影像輸出線 路OUTN ’以接收第二影像信號。而第一運算放大器ο〗? 1 及第二運算放大器0272之另一接收端係連接一固定偏壓 Vref。第八開關S8及第九開關仍係接收第四控制信號,Referring again to FIG. 4B, it is a circuit diagram of a second preferred embodiment of the signal combining unit of the present invention. The signal combining unit 27B as shown includes a first operational amplifier 027, a second operational amplifier 272, an eighth switch S8, a ninth switch S9, a capacitor C273, and a capacitor C274. The eighth switch S8 is connected in parallel with the capacitor C273 and is connected to the first signal receiving terminal IN71 of the first operational amplifier 〇271 and the first output terminal 〇Τ71. The ninth switch S9 is connected in parallel with the capacitor C274 and is connected to the second signal receiving terminal IN72 and the second wheel terminal OT72 of the second operational amplifier 0272. The first signal receiving terminal 71 is connected to the first image output circuit 〇υτρ to receive the first image signal; the second output terminal 72 is connected to the second image output line OUTN' to receive the second image signal. And the first operational amplifier ο〗? The other receiving end of 1 and the second operational amplifier 0272 is connected to a fixed bias voltage Vref. The eighth switch S8 and the ninth switch still receive the fourth control signal,
以重置第一影像輸出線路0UTP及第二影像輸出線路 0UTN,同時使第一運算放大器〇271及第二運算放大器 0272接收第一影像信號及第二影像信號。第一運算放二 器0271係將所接收到的第一影像信號合併,以產= 第一輸出端0T?1輸出第-合併信號二 '以產生第二合併信號,並由第二輪的出== 二合併信號。 出弟 :析度切換之動作關係,請參 感測盗解析度切換電路正常解析度信號時序巴發明知 閱第五A圖本發明影像感測器正崎=電= 12 1328389 感測i陣列如第五A圖述係為一 ix 8之影像 例,影像擷取元件又旦電路’其僅為本發明之說明實施 件之數置係非本發明所限定。 首先換電路在正常解析度時, 產生第一影像传 使合办像擷取早疋231〜238 單元231〜238:〜+衫像信號,並儲存於各影像擷取 係為sc^^,之電儲存元件。因為此時接析度切換段數 為21"·1),U析度㈣喊(解析度㈣㈣的控制數量 =G1 τγΓ移暫存器如〜248會依序產生輸出控制ΐ ^ΓΓ23! τ— 單元如,像榻取 號經由第-影像輸出線路ουτρ,=5Λ及弟=像信 OUTN傳輸至信號合併單元2?C出線路 接著請參㈣六圖,料ϋ;^明)。 :發明影像感測器具二分之-解析度=之= 圖’以配合說明。若當影像感測器 ^免 時,同樣由控制單元21送出第—控制 之;; 制=HR及第三控制信號SHS,使各== :取ί生第一影像信號及第二影像信號,並儲:: =2) ’解析度控制單元25會需要m及c;兩二= 13 1328389 控制訊號⑽析度控寵躺㈣數 w山i控制化娩1^3、1^4,輸出控制信號TG5、TG6 i =,號T G 7、rc 8:以先_開啟第—影像擷取 y70接签η t 一影像操取單元23 2中之第四開關及第五開 ^ 第三影像擷取單元233及第四影像擷取 第四開關及第五開關’然後同時開啟第五影The first image output line OUTP and the second image output line 0UTN are reset, and the first operational amplifier 〇271 and the second operational amplifier 0272 are simultaneously received by the first operational signal 及271 and the second operational amplifier 0272. The first operational amplifier 2271 combines the received first image signals to produce a first output terminal OT1 to output a first-combined signal two' to generate a second combined signal, and is output by the second round. == Two combined signals. Dear brother: Action relationship of resolution switching, please refer to the sensory thief resolution switching circuit normal resolution signal timing BA invention knows the fifth A picture of the invention image sensor gens = electric = 12 1328389 sensing i array as the first The fifth A diagram is an example of an image of ix 8, and the image capturing component has a circuit which is merely a number of the embodiments of the present invention and is not limited by the present invention. First, when the circuit is changed at the normal resolution, the first image transmission is generated and the image is captured as early as 231~238 units 231~238: ~+ shirt image signals are stored in each image capturing system as sc^^, Electrical storage component. Because the number of segmentation degrees of the resolution is 21"·1), the degree of U resolution (four) is called (the resolution (4) (four) of the number of controls = G1 τγ shift register such as ~ 248 will produce output control ΐ ^ΓΓ23! τ- For example, the unit is transmitted via the first image output line ουτρ, =5Λ and the younger brother = OUTN to the signal combining unit 2?C out of the line, then refer to (4) six figures, material ϋ; ^ Ming). : Invented image sensing device - two resolution - resolution = figure ' to match the description. If the image sensor is free, the control unit 21 also sends the first control; the system = HR and the third control signal SHS, so that each ==: takes the first image signal and the second image signal. And storage:: =2) 'The resolution control unit 25 will need m and c; two two = 13 1328389 control signal (10) analysis control pet lying (four) number w mountain i control delivery 1 ^ 3, 1 ^ 4, output control Signals TG5, TG6 i =, number TG 7, rc 8: first _ turn on the first image capture y70 pick η t one of the image capture unit 23 2 and the fifth open third image capture The unit 233 and the fourth image capture the fourth switch and the fifth switch 'and then turn on the fifth shadow at the same time
第:門:70】35及第六影像擷取單元236中之第四開關及 二再同時開啟第七影像類取單元237及第八影像 之第四開關及第五開關,使影像擷取單元 = 瞻及第二影像輸出線路OS; 輸至仏號合仿單元27合併,達成降解析度之目的。 路四:七圖,係為本發明影像感測器解析度切換電 明史解析赴#U時序圖,同時複參閱第七A圖本發 明衫像感測器具四分之一輊挤许 一。若當二 ==單上21,第_控_-、=』信 & —控制使各影像擷取單元231〜238 信號及第二影像信號,並儲存於各影像擷取 係勺括正a /中之電儲存7^件。因為此時接析度切換段數 個r數(吊—3度、一分之一解析度及四分之-解析度三 數(m = 3) ’所以解析度控制單元25會需要CC1、 控制數旦A 34四條解析度控制訊號(解析度控制信號的 二 里為2 ),然後位移暫存器241〜248合依岸同時 產生輸_信號 TG1、TG2、TG3、TG^;=: 14 !328389 藏 TG5、TG6、TG7、TG8 ’以先 元攻、第二影像操取單元232'=摘:= 同如巾第四開關及第五開關,接著 單元故、第六影像擷取單元故、 二:=Γ 237及第八影像操取單元238中之第四 ⑽及社開關’而使影像擷取單元231〜 之第一影像信號及第二影像作梦狹— 、'The door: 70] 35 and the fourth switch in the sixth image capturing unit 236 and the second switch simultaneously open the seventh image capturing unit 237 and the fourth switch and the fifth switch of the eighth image, so that the image capturing unit = Looking at the second image output line OS; the combination to the apostrophe and copy unit 27 is combined to achieve the purpose of lowering the resolution. Luke 4: The seven maps are for the analysis of the resolution of the image sensor of the invention, and the analysis of the history of the electrician goes to the #U timing chart, and at the same time, refer to the seventh A picture, which is one quarter of the hair-sensing device. If two == single on 21, the first _ control _, = _ letter & - control to make each image capture unit 231 ~ 238 signal and the second image signal, and stored in each image capture system / Zhongzhi electricity storage 7^ pieces. Because at this time, the degree of rectification switches a number of r numbers (hang - 3 degrees, one-point resolution and quarter-resolution three (m = 3) ', so the resolution control unit 25 will need CC1, control A few Dan A 34 four resolution control signals (the second of the resolution control signal is 2), then the displacement registers 241~248 are combined with the shore to generate the input signal TG1, TG2, TG3, TG^; =: 14 ! 328389 TG5, TG6, TG7, TG8 'first ray attack, second image manipulation unit 232' = pick: = the same as the fourth switch and the fifth switch, then the unit, the sixth image capture unit, 2: = Γ 237 and the fourth (10) and the social switch ' in the eighth image capturing unit 238, and the first image signal and the second image of the image capturing unit 231~ are made into a narrow image, '
Oim及第二影像輸出線路” 合併,達成降解析度之目的。傳輪至域合併早疋27 發明影像感測器解析度切換電 明影像威測狂t 圖’同時複參閱第八A圖本發 心===:解析度切換電路之功能方塊圖: 月右虽影像感測器解拚 同樣由控制單元21送出第—控二;:之日,’ 號咖及第三控制信號SHS,使===_弟二控制信 產生第-影像信號及第二影 ^早70 231〜238 單元231〜238中之雷儲广-料 亚儲存於各影像擷取 係包括正常解析戶、_八:凡。因為此時接析度切換段數 -分之-解析度:個:匕7度、四分之-解析度及 25會需要CC1、cc:2、),所以解析度控制單元 CC8八條解析度 、T、CC5、CC6、CC7及 Γ),然後位移暫存她制數量為 ^ 丁⑺〜TG8,以同時 曰1 序同=錢出控制 弟四開關及第五開闕,而Μ =像擷取早70 231〜238中之 將錯存之第-影像仲5 %使影像擷取單元231〜238 線路⑽Ρ及第像信號經由第1像輪出 像輸出線路0UTN傳輪至信號合併單 25 1328389 元27合併,達成降解析度之目的。 惟,以上所述,僅為本 :::圖式,惟本發明之特==實施例之詳細 :本=,本發明之所有範圍應 之用以隊 準’凡合於本發明申請專 專利範圍為 施例,皆應包含於本發明月^、其類似變化之實 在本發明之領域内,“=悉該項技藝音 以下本案之專利範圍。 欠化或修飾皆可涵蓋在 【圖式簡單說明】 f -圖係為習知接觸式影像感測器切換 弟二圖:為本發明影像感測器解析度切換心^ 第二圖係為本發明影像擷取單元之電路圖. 第四1係為本發明信號合併單元第1佳實施例之電路 第四1係為本發明信號合併單元第二較佳實施例之電路 第五圖係為本發㈣像制轉析度切 信號時序圖; 电岭止吊解析度 第五A圖係為本發明影像感測器正常 能方塊圖; X 路之功 第六圖係為本發明影像感測器解析度切 析度信號時序圖; —$之一解 弟六A圖係為本發明影像感測哭且_八> 路之功能方塊圖.;。—刀之—解析度切換電 第七 第七 第八 第八 圖係為本發明影像感測器解析度切換電路四分之—解 析度信號時序圖;A::=像感嶋 圖感r析度切換電路 A圖係為本發明影像感測器具八八 路之功能方塊圖。 乃 之一 電 八分之一解 解析度切換電 【主要元件符號說明】 [習知技術] 控制單元11 感剛元件端解析度切換線路12 光訊號轉換單元131、132 位移暫存器141、142、143 134 . %、144 移暫存益端解析度切換線略Μ 影像感測元件161、162、l 163 、 第一控制信號RST 第二控制信號SHR 第三控制信號SHS 第四控制信號CONl、 C〇N4 > C0N5 com CQN2、c〇N3 控制信號TGI、TG2、τα 笛一 iG3、TG4 第一開關SI la 17 1328389 第二開關S12a 第三開關S13a 第四開關S14a 第五開關S15a 運算放大器011a 第一電儲存元件Clla 第二電儲存元件C12a 第一電晶體MP1 第二電晶體MP2 第一影像輸出線路0UT1 第二影像輸出線路0UT2 [本發明]Oim and the second image output line are merged to achieve the purpose of lowering the resolution. The transfer to the domain merges earlier. 27 Invented image sensor resolution switch, the electric image, the madness, the t-picture, and the eighth picture. Heart ===: Function block diagram of the resolution switching circuit: Although the image sensor is desperately released by the control unit 21, the control unit 21 sends the first control 2; on the day, the coffee machine and the third control signal SHS ===_Different control letter generates the first image signal and the second image ^70 231~238 units 231~238 in the thunder storage - material sub-storage in each image retrieval system including normal resolution households, _ eight: Because at this time, the degree of segmentation of the degree of resolution is divided into - the resolution - one: 匕 7 degrees, quarters - resolution and 25 will need CC1, cc: 2,), so the resolution control unit CC8 eight Resolution, T, CC5, CC6, CC7 and Γ), then shift the temporary storage of her system to ^ D (7) ~ TG8, at the same time 曰 1 sequence same = money out control brother four switches and fifth opening, and Μ = For example, the image-capture unit 231~238 line (10) and the image signal via the first image are captured in the first 70 231 to 238. The image output line OUTN is transmitted to the signal combining unit 25 1328389 yuan 27 to achieve the purpose of lowering the resolution. However, as mentioned above, it is only the ::: pattern, but the details of the invention == embodiment The present invention is intended to be used in the scope of the present invention, and all of the scope of the present invention should be included in the scope of the present invention. = The technical scope of the patent is as follows. Under normalization or modification can be covered in [Simplified description of the schema] f - The diagram is a conventional contact image sensor switching brother second diagram: the image sensor resolution switching heart of the present invention ^ The second diagram is the basis The circuit diagram of the image capturing unit of the present invention. The fourth embodiment is the circuit of the first preferred embodiment of the signal combining unit of the present invention. The fourth embodiment is the circuit of the second preferred embodiment of the signal combining unit of the present invention. (4) The timing diagram of the image conversion signal; the fifth A diagram of the electric ridge suspension resolution is the normal energy block diagram of the image sensor of the invention; the sixth diagram of the X road is the image sensor analysis of the invention Degree resolution signal timing diagram; -$ one solution is the functional block diagram of the image sensing crying and _eight> - Knife - Resolution Switching Power Seventh, Eighth, Eighth, Eighth, Figure 4 is the image sensor resolution switching circuit of the present invention - the resolution signal timing diagram; A:: = image sense The degree switching circuit A is a functional block diagram of the eight-eighth road of the image sensing device of the present invention. One of the electric eighth resolution resolution switching power [main component symbol description] [known technology] control unit 11 sense element end resolution switching line 12 optical signal conversion unit 131, 132 displacement register 141, 142 143 134 . %, 144 shift temporary storage resolution conversion line skip 影像 image sensing elements 161, 162, l 163, first control signal RST second control signal SHR third control signal SHS fourth control signal CONl, C〇N4 > C0N5 com CQN2, c〇N3 control signals TGI, TG2, τα flute-iG3, TG4 first switch SI la 17 1328389 second switch S12a third switch S13a fourth switch S14a fifth switch S15a operational amplifier 011a First electric storage element Cl1 second electric storage element C12a first transistor MP1 second transistor MP2 first image output line OUT1 second image output line OUT2 [present invention]
控制單元21 影像擷取單元231〜23η 第一影像擷取單元231 第二影像擷取單元232 第η影像擷取單元23η 位移暫存器241〜24η 解析度控制單元25 信號合併單元27 第一控制信號RST 第二控制信號SHR 第三控制信號SHS 第四控制信號CLK 18 1328389 第一影像輸出線路OUTP 第二影像輸出線路OUTN 解析度控制信號CC1〜cc〗1™Control unit 21 image capturing unit 231~23n first image capturing unit 231 second image capturing unit 232 nth image capturing unit 23n displacement register 241~24n resolution control unit 25 signal combining unit 27 first control Signal RST Second Control Signal SHR Third Control Signal SHS Fourth Control Signal CLK 18 1328389 First Image Output Line OUTP Second Image Output Line OUTN Resolution Control Signal CC1~cc〗1TM
輸出控制信號TG1〜TGn 光訊號轉換單元2311 重置電源Vrst 運算放大器011 影像感測元件D1 第一開關S11 第二開關S12 第三開關S13 第四開關S14 第五開關S15 第一電儲存元件C11 第二電儲存元件C12 信號合併單元27A 雙端輸入雙端輸出之運算放大器027 第六開關S6 第七開關S7 電容C271 電容C272 第一信號接收端IN1 第二信號接收端IN2 第一輸出端0T1 19 1328389 第二輸出端0T2 信號合併單元27B 第一運算放大器0271 第二運算放大器0272 第八開關S8 第九開關S9 電容C273 電容C274 第一信號接收端IN71 第二信號接收端IN72 第一輸出端0T71 第二輸出端OT72 固定偏壓VrefOutput control signal TG1 TGTGn optical signal conversion unit 2311 reset power supply Vrst operational amplifier 011 image sensing element D1 first switch S11 second switch S12 third switch S13 fourth switch S14 fifth switch S15 first electrical storage element C11 Two electrical storage components C12 signal combining unit 27A double-ended input double-ended output operational amplifier 027 sixth switch S6 seventh switch S7 capacitor C271 capacitor C272 first signal receiving terminal IN1 second signal receiving terminal IN2 first output terminal 0T1 19 1328389 Second output terminal 0T2 signal combining unit 27B first operational amplifier 0271 second operational amplifier 0272 eighth switch S8 ninth switch S9 capacitor C273 capacitor C274 first signal receiving terminal IN71 second signal receiving terminal IN72 first output terminal 0T71 second Output OT72 fixed bias Vref
2020
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TW95145456A TW200826642A (en) | 2006-12-06 | 2006-12-06 | DPI switching circuit for image detector and method thereof |
JP2007316009A JP2008148311A (en) | 2006-12-06 | 2007-12-06 | Image sensor resolution switching circuit and method thereof |
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TW95145456A TW200826642A (en) | 2006-12-06 | 2006-12-06 | DPI switching circuit for image detector and method thereof |
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TWI328389B true TWI328389B (en) | 2010-08-01 |
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TWI617198B (en) * | 2013-03-15 | 2018-03-01 | 開曼群島商普廷數碼影像控股公司 | Imaging systems with clear filter pixels |
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TWI617198B (en) * | 2013-03-15 | 2018-03-01 | 開曼群島商普廷數碼影像控股公司 | Imaging systems with clear filter pixels |
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