TW552797B - Recognition device of charged couple device - Google Patents

Abstract

There is provided a recognition device of charged couple device for receiving N detection signals, which includes a switch device and N signal receiving terminals. The switch device is provided to generate a set of output signals. The output signal is used as the output signal of the recognition device of CCD for being transmitted out. The N signal receiving terminals include an I-th signal receiving terminal for receiving the I-th detection signal. The I-th signal receiving terminal is selectively electrically coupled to the switch device to control the switching operation of the switch device based on the type of the CCD circuit board, wherein the N detection signals are sequentially inputted to N signal receiving terminals at different time points. With the combination of the output signal levels obtained at different time points, it is able to recognize the type of CCD circuit board.

Description

552797 〇2 r; ^ ° --Case No. 90119091 * Month ~ Day Amendment V. Description of the Invention (1) [Field of the Invention] The present invention relates to a device for identifying a charge-coupled device, and more particularly, to a device used in Identification device for charge-coupled elements in a scanner. [Background of the Invention] In the scanner, after the light source of the optical machine emits light, a charge couple device (CCD) is used to receive the light reflected from the document to be scanned. The above-mentioned CCD is generally configured in a CCD board. The CCD circuit board is after the CCD converts the optical signal into an electric signal, and then processes the charge signal to output the image corresponding to the image to be scanned. Video signal. -In general, for scanners with different requirements, the desired purpose can be achieved by using different CCD circuit boards of type 1 (Type). For example, when the scanner is designed to have a high resolution, a high-resolution circuit board can only be used for analysis. A low-resolution CCD circuit board should be used. When the scanner is started, the main board must perform a detection action on the CCD to identify the scanner to use. With the model of the trailing board, the only way can be # 播 π 哭Pay for normal operation. The method of detecting the action of the traditional master I is described below. Circuit board Please refer to Figure 1, which shows the schematic diagram of the electrical coupling of the board. In the traditional scanner, when the main circuit board

TW 〇464 (030509) CRF.ptc «4 pages 552797 __m 90119091__year month day heart_ V. Description of the invention (2) 1 02 When detecting the CCD circuit board 104, multiple CCD circuit boards 104 must be used The signal line 10 6 ′ is used for multi-bit transmission to transmit the binary code (Binary code) corresponding to the model of [cd circuit board 104] to the main circuit board 102. In other words, when identifying the types of π different ccd circuit boards, N signal lines must be used to transmit N-bit binary codes to the main circuit board, so that the main circuit board can correctly Know the model of the CCD circuit board. However, as the number of CCD circuit boards that can be used increases, the number of signal lines required to transmit binary codes must also increase, and the cost will also increase accordingly. In addition, because the number of signal wires 106 that can be used is actually limited, this will also limit the traditional practice. The main reason is that the signal line 106 must be connected to the CCD circuit board 104 or the main circuit board 102 via a connector (not shown), and the number of pins of this connector It is fixed, so that the number of signal wires that can be used in practice is limited to a certain range. [Objective and Summary of the Invention] In view of this, the object of the present invention is to provide an identification device for a charge surface bonding device. After using this identification device in a scanner, it can only act as a circuit board. The invention can effectively solve the disadvantages caused by the need for multiple signal lines in the traditional method. According to the object of the present invention, an identification device for charge depletion Coupie DeVlce (CCD) is proposed. It is used in a scanner

Page 5 552797 Amendment said if tiger 9011 〇 State 5. Description of invention (3). This scanner hurts the road board (CCD B0ai: dfi ;: Main Board and a CCD) The N detection signals include: The device receives N debt measurement signals. The number of CCD Identification == 1 detection signal, 0 < i, where i is a positive switching element used for a switching element and a signal receiving end. CCEX Μ $ generates a set of output signals, which are used as receiving The output signal is transmitted to the main circuit board. The N signal connections are # M .H — the first signal receiver. This first signal receiver is a detection signal. The first signal receiver is based on the CCD circuit board = ype), which is selectively electrically coupled with the switching element to control the opening: the two clever closing action. Among them, in the initial state, the ccd circuit board = Ding: Zhen: then & 'These N signals are sequentially rotated to the Guxun receiver at different points in time. If the i-th signal receiving end is electrically connected to the switching element, the i-th detection signal can control this switching element ’so that the output signal is equal to the second one. If the i-th signal receiving end is not electrically connected to the switching element ', the i-th detection signal cannot control the switching element, and enters a second level. #The combination of the output signal levels obtained at different points in time can identify the model of the CCD circuit board. According to another object of the present invention, a device for identifying a charge coupled device is proposed. It is used in a scanner. The scanner has a main circuit board and a CCD circuit board. The identification device of the CCD receives ν debt measurement signals. The N 彳 measurement signals include an ith 彳 measurement signal, 〇 < i < IUl, where i is a positive integer. The CCD identification device includes a transistor, N signal receiving ends, and N resistor locations. The crystal system is used to generate an output signal. This output signal is used as the output of the CCD identification device.

^ 号 90] Qfun 5. Description of the invention (4) and transfer it to the main circuit board. The N signal receivers include a first signal receiver, and the i signal receiver receives the i detection signal. The / ° resistor arrangement includes an i-th resistor arrangement, and the ith resistor arrangement selectively configures an i-th resistor. When the i-th resistor is arranged at the i-th resistor configuration, one end of the i-th resistor is electrically coupled to the transistor, and the other end of the i-th resistor is electrically coupled to the i-th signal receiving end. . In the beginning, when the CCD circuit board is to be detected in the initial state, the N detection numbers are sequentially input to the N signal receiving terminals at different time points. If the first resistor configuration is configured with an i-th resistor ’, the signal is transmitted to the transistor to turn on the transistor, so that the output signal is a first level. If the upper resistance value is configured, the first resistor has been placed, then the first injury test: No. ',,,,, / specifically to the transistor, the transistor system is not conductive and the output signal is one The second level, through the combination of the output signal levels obtained at different time points, can identify the model of the CCD circuit board. The features, advantages and advantages can be more clearly and easily combined with the accompanying drawings. In order to make the above objects of the present invention understand in detail, a preferred embodiment is described below as follows: [Simplified description of the drawings] The drawing is traditional The CCD circuit board is not intended to be electrically connected to the main circuit board. FIG. 2 is a schematic diagram showing the electrical coupling between a CCD circuit board and a main circuit board of a charge-coupled identification device using a preferred embodiment of the present invention. FIG. 3 shows the CCD according to the preferred embodiment of the present invention.

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___ Case No. 90119091 V. Description of the invention (5) Block diagram of identification device. Fig. 4 shows a detailed circuit diagram of the CCD identification device of Fig. 3. [Illustration of figure number] 102, 202: main circuit board 104, 204: CCD circuit board 1 06, 2 0 6: signal line 200: CCD identification device 308: switching element 4 0 2: resistor configuration [better Example] Please refer to FIG. 2, which shows a CCD Board and a Main Circuit Board (Main B) using a charge coupled device (CCD) identification device of a preferred embodiment of the present invention. 〇ard) schematic diagram of electrical coupling. The CCD circuit board 204 of the present invention only needs to be electrically connected to the main circuit board 202 through a signal line 206. After the scanner is started, when the control circuit (not shown in the figure) on the circuit board 202 wants to perform a test on the circuit board 204, the CCD circuit board 204 passes the signal line 202 and the type of the circuit board 204 (TvDe) One of the carry codes (Binary Code) corresponding to Yong Xi—, 隹 a 〆 德 ,,, 仏 Υ (P), the main circuit board 202. Among them, the circuit board m of the CCD, or the main circuit is arranged on the main body. Refer to FIG. 3, which shows a method for identifying a CCD according to an example of the present invention. Block diagram of Shi Ling. CCD identification device 20 ()

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__Case No. 90119091 V. Description of the invention (6) Receive N detection signals S. The N detection signals S include detection signals s (丨), S (2)-S (N). The CCD identification device 200 includes a switching element 308 and N signal receiving terminals I. The switching element 308 is used to generate a set of output signals Vout. The output signal Vout is used as the output signal of the CCD identification device 2000 and transmitted to the main circuit board 202. The N signal receiving terminals I include signal receiving terminals I (1), I (2) · · · · I (N). The signal receiving end I (1) is to receive the detection signal S (l), the signal receiving end 1 (2) is to receive the detection signal s (2), and so on, the signal receiving end I (N) is to receive the detection signal s (N). Signal receiving end I (1), I (2) · · · · I (N) is selectively connected with the switching element 308 according to the model of the CCD circuit board to control the switching element 308. Switch action. Fig. 3 illustrates the connection between the signal receiving end I (1) and the switching element 308, and the signal receiving end I (2) and the switching element 308 are not electrically connected as an example. Among them, the detection signals S (l) and s (2) can be high-level signals. When the CCD circuit board 2 04 is to be detected in the initial state, the detection signals S (l), S (2)-S (N) are sequentially input to the signal receiving terminal I (1 at different time points) ), I (2) —— I (N). For example, at the first time point, the detection signal S (1) is input to the signal receiving terminal I (1), and at the second time point, the detection signal S (2) is input to the signal receiving terminal 1 ( 2), and so on. At the Nth time point, the detection signal S (N) is input to the signal receiving terminal I (N). The signal receiving end I (1) and the signal receiving end I (2) are taken as examples for description. If the signal receiving end, for example, the signal receiving end I (1) is electrically coupled to the switching element 3 08, the detection signal S (1) received at the signal receiving end I (1) can control the switch The component 3 0 8 makes the output signal V 〇ut a first level, for example

TW0464 (030509) CRF.ptc Page 9 552797

Amend i No. 9011 to discuss 1 V. Description of Invention (7) Level. The right signal receiving end, for example, the signal receiving end I (2), is not electrically coupled to the sweat component 3 0, and the test received at the signal receiving end (2) says that S (2) cannot be controlled. The switching element 3 () 8, the output signal vout is a second level, such as a high level. When the taxi is δ 'at a certain time point, for example, at the fourth time point 4, when the debt measurement signal S (i) is input to the signal receiving terminal I (i), the signal is connected to 2:10? And the switch The situation of electrical coupling between the elements 308 will be reflected in the level of Vout. If there is an electrical connection between the signal receiving end I (i) and the switching element 308, the output signal vout is at a low level; and if the signal 5Vout is at a high level. Therefore, the main circuit board 202 will be at the first time point, the second time = ', so that each of the Nth time points will get an output signal EV〇ut position i, 丨: i! Control on the road 2 2 2 The circuit can use the combination of Hi levels obtained at different points in time to obtain the binary code corresponding to the ^ 'number of the desired ccd circuit to identify the dual-pair of the CCD circuit board 204. Please refer to Figure 4ffl, which shows the detailed circuit diagram of Figure 3. The switching element 308 includes a set collector (C). The C series is connected via a resistor = ，, the electric sun and the body Q. The resistor r is a DC voltage source vcr such as j :: transistor Q's emitter. ) E is the voltage of the ground terminal C as the output voltage VQut. The electric crystal = the output signal Vout is used as the CCD identification device 2000 ^ ^ wheel main circuit board 002. In the identification device wheel of ⑽ in Figure 4 ^

552797 Case No. 90119091 Amendment V. Description of the Invention (8) Resistor placement 402, including resistor placements 402 (1) to 402 (N), to make N signal receiving ends I selectively be at the extreme extremes of the base of transistor Q (Base) Electrically coupled. The resistor R 2 can be optionally configured at the resistor configuration. When the resistor R is placed at the resistor configuration position 402, one end of the resistor R is electrically coupled to the base terminal B of the transistor Q, and the other end of the resistor R is electrically coupled to the signal receiving terminal I. Among them, when the CCD circuit board 204 is to be detected in the initial state, the detection signals S (1), S (2) · · · S (N) are sequentially input to the signal receiving terminal 1 at different time points. (1), 1 (2) ... 1 (? 〇. Here is an example of the resistor configuration at 402 (i), which is one of the 4 ^ 2 resistor configuration, 〇 < i < N + 1 It is a positive integer. If the resistor 402 (i) is equipped with a resistor R (i), the detection signal s (i) is transmitted to the power after the detection signal S (i) is input to the signal receiving terminal 402U). The crystal Q turns on the crystal Q so that the output signal vout is at a low level. 402 (1) at the right resistor configuration is not equipped with a resistor (丨), then after detecting the sfL number S (1) is input to the signal receiving end 4 〇 2 (i), the detection signal s (丨) cannot be transmitted To the base terminal B of the transistor Q, the transistor Q is non-conducting and outputs, and the signal Vout is at a high level. By combining the levels of the output signal Vout obtained at different points in time, the model of the CCD circuit board 204 can be identified. In this way, the CCD identification system shown in FIG. 4 can identify the different types of CCD circuit boards m. Yudi! Time points to the Nth time ^ After inputting the detection signals s⑴ ~ s⑴, the bit values of the circuit board 2 = binary code can be obtained from the output signal v0ut time points to the Nth time point, where , When the output signal is jin, B, which represents logic 1; and when the output signal v〇ut is at a low level,

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Shou 'which means logic 0. Bit code two says that it is assumed that the value of N is equal to three, and the CCD circuit board 204bis is coupled to r A A (0 10) 2. Before the scanner leaves the factory, the resistors R (1) and 3) ι (Ίτ "at 4 ° 2 (1) and 402 (3) at the resistor configuration 'make the signal receiving terminal u? And the base terminal 9 of the transistor 9 Electrically coupled, and the signal receiving end ^ ^ ^ ^ ^ fui means' the detection signal s (丨) whose input is a high level, and the transistor 卩 is turned on: the output signal vout to a low level is obtained to obtain logic. The 2 I shot at time is the high-level detection signal s (2), because the signal receiving end = is electrically coupled to the base terminal B of the transistor Q, and the transistor Q will not be turned on to get 咼The signal of level vout is output to obtain logic 1. At the time point 13, the detection signal s (3) which is the high level is input, the transistor Q is turned on and the low level output signal Vout is obtained. Logic 0 is obtained. In this way, the main circuit board 202 can receive the first bit value (0) and the second bit value of the binary code representing the model of the CCD circuit board 204 at time points ^, ΐ2, and, respectively. (1) and the third bit value (0), and the type of the CCD circuit board 204 can be identified by the binary code (〇1〇) 2. In this embodiment, although the detection signal S (U, s ( 2 ) ____ S (N) are all standard signals as an example, but the present invention is not limited to this. The detection signals S (l), S (2) ---- S (N) can also be high frequency Square wave signal. In Figure 4, if the resistor configuration 40 (i) is equipped with a resistor R (i), the detection signal su) is input to the signal receiving terminal 402 (i), and then the signal is output. v〇ut is an inverting square wave signal. If the resistor configuration 40 (i) is not configured with a resistor R (i) ', then the detection signal S (i) is input to the signal receiving terminal 4〇2 ( i) of

TW0464 (030509) CRF.ptc Page 12 552797

5. After the description of the invention (ίο), the detection signal S (1) cannot be transmitted to the base terminal 6 of the transistor Q. The transistor Q is not conductive and the output signal Vout is maintained at a high level. In this way, the type of the CCD circuit board 204 can also be identified by the combination of the waveforms of the output signal vout obtained at different points in time. [Effects of the Invention] The identification of the charge-coupled device disclosed in the above embodiment of the present invention is installed behind the scanner and is used to detect the CCD circuit board by using only one signal line, that is, two. Model of the board: So it effectively solves the disadvantages caused by the need for multiple signal lines in the traditional method. Although the present invention has not been described in the above-mentioned preferred embodiments, the present invention is as follows: hair: invention, anyone skilled in this art can make various changes without departing from this 'Ming :: finger :: within range'. Retouched, therefore: ... m Wai Dang regards the scope of the patent application attached as defined below

552797 _Case No. 90119091_ Year Month Day Amendment Simple Explanation of Drawings Page 14 TW0464 (030509) CRF.ptc

Claims (1)

552797 1. A charge coupling device (Charge Couple Device, CCD) identification device is used in a scanner, the scanner has a main circuit board (Main Board) and a CCD circuit board (CCD Board), the CCD The identification device receives N detection signals, and the n detection signals include an i-th detection signal, 0 &lt; i &lt; N + l, where i is a positive integer, and the identification device of the CCD includes: A component for generating an output signal, which is used as an output signal of the identification device of the CCD and transmitted to the main circuit board; and two N signal receiving ends, including an i-th signal receiving end, the i-th Each flood number receiving end receives the first detection signal, and the first signal receiving end is selectively electrically coupled with the switching element according to the type (Type) of the CCD circuit board to control the switch. The switching action of the component; where 'in the initial state, when the CCD circuit board is to be tested, the N detection signals are sequentially input to the n signal receiving terminals at different time points. The signal receiving end is connected to the switch Components are electrically coupled, the i-th detection signal can control the switching element so that the output signal is a first level, and if the i-th signal receiving end is not electrically connected to the switching element Coupled, the i-th detection signal cannot control the switching element, the output signal is a second level, and the CCD circuit can be identified by a combination of the levels of the output signal obtained at different points in time The model of the board. 2. The identification device according to item 1 of the scope of patent application, wherein the ^ Haiguan element includes a transistor. * 3. The identification device as described in item 1 of the scope of patent application, wherein the first 552797 One bit is the low level. 4 · If applying for patents, the second level shall be the high level. The identification device described in item 1 of the Circumstance 5. The debt measurement signal described in item 丨 of the scope of patent application is a high level. 6 · The CCD identification device described in item 1 of the scope of patent application is configured on the circuit board identification device, wherein the N identification device, wherein the 7 · identification of the CCD described in item 1 of the scope of patent application The device is arranged on the main circuit board. Among them, "The identification device of the Λ-combination element in the Hai" is used in a scanner-like form: "has a main circuit board and a CCD circuit board. Each detection signal includes a first detection signal, 〈i <N + 1, i is a positive integer, and the identification device of the CCD includes: a transistor for generating an output signal, and the output signal is used as The output signal of the CCD identification device is transmitted to the main circuit board; N signal receiving terminals include a first signal receiving terminal, and the i signal receiving terminal receives the i detecting signal; and N Each resistor configuration includes a first resistor configuration. The i resistor configuration is selectively configured with an i resistor. When the i resistor is configured at the i resistor configuration, the One end of the i-th resistor is electrically connected to the transistor, and the other end of the i-th resistor is electrically coupled to the i-th signal receiving end; c]) When the circuit board detects, Sixth, the scope of patent application ----- nu ___ The measurement signal is in sequence ^ ~-can identify the one of the first 'where the, where the N' where the, where the dagger 'if the first electric m :: at the time point input to the N signals connected to the first detection signal is transmitted 7 s A is equipped with the i-th resistor, then the output signal is a first k-breaking transistor to turn on the The transistor should have the i-th resistor. "If the i-th resistor is not configured, the transistor system does not conduct 1. The detection signal cannot be transmitted to the transistor at different points in time. It is obtained that the signal of this round is a second level, by the model of the CCD circuit board. The combination of the levels of 4 output signals,-The bit 9 must be the identification device described in item 8 of the quasi-patent scope, and the second level U can be the detection device described in item 8 of the scope of the patent. The identification device described in item 8 The identification device τ monument device described in the item / ϋ profit item is disposed on the CCD circuit board. ⑽ΓIdentifies the identification equipment described in item ^ 1/8. The clothing removal system is configured on the main circuit board.