CN2834050Y - Portable electronic recording pen - Google Patents

Abstract

The utility model relates to an electronic recording pen comprising: an area array scanning device 1 , a view finder 2 , a controller 3 , a display 4 , an interface 5 , other equipment 6 , a memory 7 and a mode switching unit 8 . It is used to convert the electrical signal converted by the area scan device into a digital signal to obtain multiple first and multiple second sub-blocks, synthesize multiple first sub-blocks into a first macroblock, and synthesize multiple second sub-blocks The second macroblock synthesizes the first macroblock and the second macroblock into an image, and the controller sends a control signal to the viewfinder according to the switching signal; the memory is used to store image data and the program executed by the central processing unit; the mode switching unit to switch between the standby mode, the first working mode and the second working mode according to the needs of the user. In the first working mode, the scanned pages can be automatically positioned, so that there will be no missing or serial phenomenon in the scanning process. In the second working mode, the entire page can be photographed, thereby realizing fast scanning.

Description

portable electronic recorder

technical field

The utility model relates to a portable electronic recording pen, in particular, the utility model relates to an electronic recording pen capable of local photographing and simultaneous scanning of multiple lines, so that information can be quickly collected and recorded.

Background technique

The traditional portable electronic recording pen is mainly used to scan the content or paragraphs of interest when reading, and store it for editing later, or directly recognize the scanned text image in the electronic recording pen, and generate and feel. The content of interest is consistent with the text, so as to realize the transformation of paper text into electronic documents.

U.S. Patent No. 5,574,804 discloses a hand-held scanner for scanning and recording interesting content while reading. The working process of the scanner is: the character scanning device in the scanner moves parallel to the character strings on the paper, and at the same time realizes the scanning of serial characters, in which the line scan device with a wide field of view is installed on the side of the scanner , used for line scanning of pages or documents. In addition, U.S. Patent US 6619551 also discloses a hand-held scanner with a line scan device, which first scans the upper half of the page, then scans the lower half of the page, and then scans the upper half of the image Combining with the lower part of the image to obtain the entire page image, it is possible to scan a large-format page with a small-format scanner.

However, both techniques mentioned above have corresponding disadvantages. For US Patent No. 5,574,804, there is a problem that due to scanning line by line, on the one hand, the scanning speed is relatively slow; If the latter case occurs, the user has to rescan. For U.S. Patent No. 6,619,551, the problem is that the position of each scan is mechanically provided to prevent repeated scanning, but due to the mechanical structure and linear scan, the scanning speed is very slow, which is difficult to meet the actual application needs.

Contents of the invention

The purpose of the utility model is to provide a portable electronic recording pen with two working modes. In the first working mode, the portable electronic recording pen of the present invention can automatically locate the scanned pages, so that there will be no omission or serial phenomenon during the scanning process. In the second working mode, the portable electronic recording pen of the present invention can take pictures of large-format pages, thereby realizing fast scanning of large-format pages.

According to one aspect of the present invention, a portable electronic recording pen is provided, including: a viewfinder, including a viewfinder frame, an optical system and a driving mechanism, and the driving mechanism changes the imaging parameters of the optical system according to the control signal, so that the optical system can be used in different Under the working mode, the image will be imaged on the area scan device, and the viewfinder frame is used to enable the user to determine whether the page to be photographed is in the imaging area; the area scan device is used to scan the page in the first direction to convert the optical signal into an electrical signal; the controller is used to convert the electrical signal converted by the area scan device into a digital signal to obtain a plurality of first sub-blocks and a plurality of second sub-blocks, and in the plurality of first Performing a correlation operation between adjacent sub-blocks of the sub-blocks to synthesize the plurality of first sub-blocks into a first macroblock in the first direction, and performing a correlation operation between adjacent sub-blocks of the plurality of second sub-blocks performing a correlation operation to synthesize the plurality of sub-blocks into a second macroblock in the first direction, and combining the first macroblock and the second macroblock in a second direction perpendicular to the first direction The blocks are synthesized into an image, and the controller also sends a control signal to the viewfinder according to the switching signal; the interface is used to send the image obtained by the controller to the outside; the memory is used to store image data and programs executed by the central processing unit ; and a mode switching unit, which is used to switch between the standby mode, the first working mode and the second working mode according to the needs of the user, and send a switching signal to the controller.

Using this structure, in the process of reading, if the user is interested in a certain paragraph or a few sentences in the page, he/she can put the portable electronic recording pen of the present utility model into the first working mode, namely Scanning mode, scanning along the row or column of the character of interest, because it can perform electronic automatic positioning, even if the user is not concentrating, there will be no serial or missing phenomenon, and because of the adoption of With area scan devices, the scanning speed is also greatly accelerated. In addition, if the user is interested in the entire page and wants to record the entire page, he/she can put the portable electronic recording pen of the present utility model into the second working mode, that is, the photographing mode, and scan the area The device aligns the page vertically, and when it is judged that the entire page is in the viewfinder frame, the shutter is pressed to take a photo of the entire page, thereby realizing fast scanning.

According to the present invention, scan in the first direction to obtain a plurality of first sub-blocks, and synthesize the plurality of first sub-blocks in the first direction to obtain a first macroblock; scan in the first direction obtaining a plurality of second sub-blocks, and synthesizing the plurality of second sub-blocks in the first direction to obtain a second macroblock; and synthesizing the first macroblock in a second direction perpendicular to the first direction macroblock and the second macroblock to obtain an image.

With the scanning of the utility model, when only part of the content in the page is interested, the scanning can be realized at a faster speed than the conventional technology by synthesizing the scanned images of each part into one image.

Description of drawings

The following description of the preferred embodiments of the present invention will make the above-mentioned and other advantages and characteristics of the present invention clearer with reference to the accompanying drawings. In the accompanying drawings:

Fig. 1 shows the composition block diagram of the portable electronic recording pen according to the preferred embodiment of the present invention;

Figure 2 shows a block diagram of the viewfinder in Figure 1;

Fig. 3 shows a detailed block diagram of a controller according to an embodiment of the present invention;

Fig. 4 shows a detailed block diagram of a controller according to another embodiment of the present invention;

Fig. 5 shows the composition of the memory shown in Fig. 1;

Fig. 6 shows a schematic diagram of the portable electronic recording pen scanning in the first working mode according to the utility model;

Fig. 7 shows a detailed flowchart of the scanning method according to the present invention;

8 to 10 show the third embodiment of the present utility model and its working process.

Detailed ways

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings.

In the following description, for the purpose of clarity, well-known functions or structures will not be described in detail, since unnecessary detailed description will obscure the key point of the present invention. And throughout the description, the same or detailed components are denoted by the same or similar reference numerals.

Fig. 1 shows a block diagram of a portable electronic stylus according to an embodiment of the present invention.

As shown in the dotted line frame in Fig. 1, the portable electronic recording pen of the present utility model comprises: area array scanning device 1, by area array CCD, or CMOS area array detector or other types can carry out the area array detection device of photoelectric conversion and its corresponding drive control circuit; the viewfinder 2 includes a viewfinder frame 21, an optical system 22 and a drive mechanism 23; a controller 3 is used to control various parts of a portable electronic stylus; a display 4, such as a liquid crystal or Flat-panel displays such as organic electroluminescence; interface 5, used to send scanned images to other devices 6; memory 7, used to store image data and computer-executable program data; mode switching unit 8, used to The need to switch between the standby mode, the first working mode and the second working mode. In Fig. 1, although other devices 6 are included, this is only an embodiment, that is, the situation when the portable electronic stylus pen of the present invention is connected with other devices such as notebook computers. In fact, the portable electronic recording pen of the present invention can work independently, and communicate with a notebook computer or a desktop computer through a wireless communication method such as bluetooth and infrared or a wired communication method such as USB after scanning, and scan The obtained data is stored in a corresponding laptop or desktop computer for identification or editing.

In addition, as another embodiment, the portable electronic recording pen of the present invention further includes a start/end button, when the user decides to start scanning, press the start/end button to start scanning. When the scanning ends, the user releases the start/end button, indicating that the scanning ends.

FIG. 2 shows a block diagram of the viewfinder in FIG. 1 . As shown in FIG. 2 , the viewfinder 2 as a component of the portable electronic recording pen of the present invention includes a viewfinder frame 21 , an optical system 22 and a driving mechanism 23 . The driving mechanism 23 changes the imaging parameters of the optical system according to the signal from the controller, so that the optical system 22 can image in different working modes. Although not shown in the drawings, the viewfinder described above may also include a shutter. In the second working mode, that is, in the photographing mode, the viewfinder frame 21 enables the user to visually judge whether the page to be photographed is in the normal imaging area. If a part of the page to be photographed is outside the imaging area, the user can adjust the position of the portable electronic recording pen relative to the page so that the entire page to be photographed is in the viewfinder frame 21, then press the shutter, and the entire page to take pictures. In this way, users can quickly record pages of interest.

Fig. 3 shows a detailed block diagram of a controller according to an embodiment of the present invention. As shown in FIG. 3 , the controller 3 according to one embodiment of the present invention includes an A/D converter 31 , a central processing unit (CPU) 32 and a control circuit 33 . The A/D converter 31 converts the analog electrical signal converted from the optical signal by the area scan device 1 into a digital signal for digital processing. The central processing unit 32 operates according to programs stored in memory. The program executed by the central processing unit 32 will be described later. The structure of the memory 7 is shown in FIG. 5 , which includes a program area 71 storing programs executed by the central processing unit and a data area 72 storing scanned image data. In Fig. 3, the control circuit 33 receives the switching signal from the mode switching unit 8, and transmits the signal to the central processing unit 32, and the central processing unit 32 provides other components according to the predetermined program stored in the memory, such as the viewfinder 2 , the display 4 sends a control signal or displays information.

Fig. 4 shows a detailed block diagram of a controller according to another embodiment of the present invention. As another embodiment of the present utility model, the controller 3 includes: A/D converter 31, whose function is the same as that of the controller shown in Figure 3, for converting the analog electrical signal converted from the optical signal into a digital signal, so as to carry out digital processing; the first buffer 34 is used to buffer and store the digital signal from the A/D converter 31, and store the digital signal into a predetermined number of image sub-blocks; the first correlator 35, Used to perform correlation operations between adjacent image sub-blocks until a predetermined number of image sub-blocks are synthesized into image macroblocks; the second buffer 36 is used to buffer and store the image macroblocks synthesized by the first correlator 35; The second correlator 37 is used to perform a correlation operation between adjacent macroblocks stored in the second buffer 36, synthesize the macroblocks into an image, and store the synthesized image in the memory; the control circuit 33 , for receiving a switching signal from the mode switching unit 8 .

The scanning process of the portable electronic recording pen of the present invention will be described below with reference to FIG. 3 and FIG. 6 . Fig. 6 shows a schematic diagram of the scanning of the portable electronic recording pen in the first working mode according to the present invention.

For example, during the reading process, when the reader finds that there are several sentences in the book document that he is interested in, the user sends a signal through the mode switching unit 8 to determine that the portable electronic recorder is working in the first mode, that is, in the scanning mode. . When the user aligns the imaging window of the area scan device 1 with the character line to be scanned and presses the start/stop button, the area scan device 1 will start at predetermined time intervals according to the control signal sent by the controller 3. Imaging in the horizontal direction, analog-to-digital conversion into digital signals in the A/D converter 31, as shown in Figure 6, a series of image sub-blocks A1, A2, A3, A4 and A5 are obtained, stored in the memory, and arrive at the scanning Send a signal to stop scanning after the edge of the page is reached. Wherein, the aforementioned adjacent image sub-blocks are overlapped by a width d. Then, the central processing unit 32 executes a program to perform a correlation operation between adjacent image sub-blocks, so that the adjacent image sub-blocks are synthesized into a first macroblock A in the horizontal direction, and the synthesized first macroblock A A is stored in memory. Next, the user scans the area to be scanned under the first macroblock in the same manner as above to obtain the second macroblock B, and also stores the second macroblock B in the memory, wherein the first macroblock A and the second macroblock There is a predetermined overlapping width D between macroblocks B. Then, the central processing unit 32 executes a program to perform a correlation operation between the first macroblock A and the second macroblock B, so that the first macroblock A and the second macroblock B are synthesized into one image in the vertical direction, If the user continues to scan, the scanned sub-blocks are synthesized into macroblocks in the same manner as above, until the user switches the mode of the portable electronic stylus to the standby mode through the mode switching unit 8, indicating that the entire scan is over. Then the macroblocks are synthesized into a complete image, which is stored in the data area 72 of the memory 7 . Regarding the technique of synthesizing adjacent image blocks into one image by performing a correlation operation between two adjacent image blocks, a two-dimensional correlation method can be used, or a horizontal correlation is first performed and then a vertical correlation is performed, so that Determine the positional relationship between two image blocks.

It can be seen from the above that using an area array scanning device can collect information in two dimensions at the same time, so that the speed of information collection or image scanning is greatly accelerated.

In order to further speed up the scanning speed, hardware can be used to implement the above-mentioned programs executed by the central processing unit. Fig. 4 shows another embodiment of the controller of the present invention. The scanning process of the portable electronic recording pen of the present invention will be described below in conjunction with FIG. 4 and FIG. 6 .

During the reading process, when the reader finds that there are several sentences in the book document that he is interested in, the user sends a signal through the mode switching unit 8 to confirm that the portable electronic recorder works in the first mode, that is, in the scanning mode. When the user aligns the imaging window of the area scan device 1 with the character line to be scanned and presses the start/stop button, the area scan device 1 will start at predetermined time intervals according to the control signal sent by the controller 3. Imaging in the horizontal direction, analog-to-digital conversion into digital signals in the A/D converter 31, as shown in Figure 6, a series of image sub-blocks A1, A2, A3, A4 and A5 are obtained, stored in the first buffer 34 , which signals to stop scanning after the scan has reached the edge of the page. Wherein, the aforementioned adjacent image sub-blocks overlap by a width d. Then, the first correlator 35 performs a correlation operation between adjacent image sub-blocks, so that the adjacent image sub-blocks are synthesized into a first macroblock A in the horizontal direction, and the synthesized first macroblock A is stored in the second buffer 36 . Next, the user scans the area to be scanned under the first macroblock in the same manner as above to obtain the second macroblock B, and stores the second macroblock B in the second buffer 37, wherein the first macroblock There is a predetermined overlapping width D between A and the second macroblock B. Then, the second correlator 38 performs a correlation operation between the first macroblock A and the second macroblock B, so that the first macroblock A and the second macroblock B are synthesized into one image in the vertical direction, if using Or continue scanning, and synthesize the scanned sub-blocks into macroblocks in the same manner as above, until the user switches the mode of the portable electronic stylus to the standby mode through the mode switching unit 8 . Then the macroblocks are synthesized into a complete image, which is stored in the data area 72 of the memory 7 .

Using this all-hardware structure, since there is no need to frequently access data in the central processing unit and storage devices, the scanning speed can be made faster.

In addition, the above scanning is horizontal scanning, and the horizontally scanned and synthesized first macroblock and the second macroblock are synthesized in the vertical direction. However, this is only an embodiment of the present invention. Of course, it is possible to scan in the vertical direction, and combine the first macroblock and the second macroblock obtained by vertical scanning and synthesis in the horizontal direction. Therefore, in the following description, the scanning direction is referred to as the first direction (horizontal/vertical), and the synthesis direction of macroblocks is referred to as the second direction (vertical/horizontal), wherein the first direction is perpendicular to the second direction.

The scanning method of the present invention will be described below in conjunction with FIG. 7 . Fig. 7 shows a detailed flowchart of the scanning method according to the present invention.

As shown in FIG. 7 , S2 to S6 describe the process of the portable electronic recording pen of the present invention in the first working mode, and S7 to S10 describe the process in the second working mode. In step S1, it is determined whether the user wants to put the portable electronic recording pen in the first working mode or the second working mode. If the judgment is "Yes", in step S2, scan in the first direction to obtain a plurality of first sub-blocks, and synthesize the plurality of first sub-blocks to obtain a first macroblock. Next, in step S3, scan in the first direction to obtain a plurality of second sub-blocks, and synthesize the plurality of second sub-blocks to obtain a second macroblock. In step S4, the first macroblock and the second macroblock are synthesized in a second direction perpendicular to the first direction to obtain an image. In step S5, it is judged whether the entire scanning process is completed, if not, return to step S3, and execute repeatedly. If the entire scanning process is completed, the image finally obtained by scanning is stored in the memory 7 in step S6.

On the other hand, if the judgment result obtained in step S1 is "No", it indicates that the user wants to take a photo of the entire page. Next, in step S7, the controller 3 sends a control signal to the viewfinder 2, and the driving mechanism 23 in the viewfinder 2 drives the optical system 22 according to the control signal of the controller 3 to change imaging parameters, such as the focal length, so that the viewfinder 2 works in the second mode. Then, the user points the portable electronic recording pen at the page to be photographed, and in step S8, observes through the viewfinder frame 21 whether the entire page is in the imaging area of the optical system 22 . If the page to be photographed is not completely within the imaging area, at step S9, the user adjusts the positional relationship between the portable electronic recording pen and the page to be photographed, knowing that the entire page is within the imaging area. Then in step S10 , the user presses the shutter, takes a photo of the page to be photographed, and then stores the captured image information in the data area 72 of the memory 7 .

With this scanning method, on the one hand, when only part of the page is of interest, scanning can be performed at a faster speed than conventional techniques by synthesizing the images of the scanned parts into one image. On the other hand, if the entire user thinks that the entire page needs to be recorded, take a photo of the entire page for quick information collection.

8 to 10 show a third embodiment of the present invention.

As shown in the dotted line frame among Fig. 8, portable electronic recording pen of the present utility model comprises:

81----Area array detectors, such as area array CCD, CMOS or other types of area array detectors capable of photoelectric conversion;

82----lighting system, including LED and other light sources;

83 - viewfinder;

84----optical system; realize the conversion of the target image into an optical image suitable for the work of the area array detector;

85----memory; composed of multiple semiconductor memory chips, used to store image data and computer-executable program data;

86----controller, including various control circuits;

87----Display, such as liquid crystal or organic electroluminescent flat panel display;

88----Interface, used to send the scanned image to other devices;

89----Menu scrolling and selection switch, used to set the working state.

810----power supply and switch, provide the power supply of the electronic recording pen, and confirm to start working.

811----Scan key, determine the start and end time of scanning.

The part outside the dotted line frame is the various equipment 812 that can be connected with the recording pen of the present utility model, and the scope of use of the recording pen and the connection equipment can be expanded through this connection.

In addition, on the basis of existing handheld computers, electronic notepads, mobile phones and other equipment, the integrated optimization design can be directly carried out, and the function of this recorder can be added, and the area array detector, display, memory, buttons, power supply, etc. can be shared. resource.

In Fig. 8, it shows the situation when the portable electronic recording pen according to the third embodiment of the present invention is connected with other devices such as notebook computers. In fact, the portable electronic recording pen of the third embodiment can also work independently, and communicate with the handheld computer, business communication, electronic device through wireless communication methods such as bluetooth and infrared or wired communication methods such as USB after the scanning is completed. Notepads, laptops or desktop computers communicate, and store scanned images or processed data such as recognition in corresponding laptops or desktop computers for identification, storage or editing.

The area detector 81 among Fig. 8 is identical with embodiment 1;

The lighting system 82 in FIG. 8 uses semiconductors such as LEDs as light sources, uses the image signal amplitude received by the detector and the result of the whole field integration as feedback, and automatically controls the brightness of the light source to ensure clear scanning images.

The viewfinder 83 in FIG. 8 is composed of a mechanical structure frame, which is used to mark the area to be scanned or photographed, and at the same time directly contacts with the paper surface to support the entire pen body. In this way, the user can easily and quickly record interesting content.

The optical system 84 in Fig. 8 is made up of a group of optical elements and its supporting structure, and turns the target information into an optical image satisfying the work of the area array detector;

The memory 85 shown in FIG. 8 is composed of a semiconductor memory chip, and is used for storing the image data obtained by executing the program and scanning by the central processing unit or the data information after it is recognized. In order to expand the storage capacity, various types of memory cards widely used at present can be added.

The controller 86 shown in FIG. 8 includes: an A/D converter, a central processing unit (CPU), a control circuit, and the like. The A/D converter converts the analog electrical signal output by the area scan device into a digital signal for digital processing. The central processing unit runs the program stored in the memory according to the received working status of each part, the status of control switches and keys, and gives corresponding control signals. The control circuit executes the operation instructions of the CPU, and gives corresponding control signals, so that the recording pen is in a normal working state.

The display 87 shown in FIG. 8 adopts flat-panel displays such as TFT liquid crystals, STN liquid crystals, or organic electroluminescence.

The interface 88 shown in Figure 8 is used to send the data information obtained by scanning to other devices 6, which can be realized in a wireless manner with infrared or bluetooth; it can also be realized in a wired manner with 1394 or USB interface. Realize; Of course, it is best to have both wireless and wired methods.

The menu scrolling and selection switch 89 shown in Fig. 8, the menu scrolling switch adopts the trigger switch, every time the menu is scrolled, the selection switch also adopts the trigger switch, which is used to confirm the displayed working mode and state of the menu.

The power supply and switch 810 shown in FIG. 8 can be a battery or a rechargeable battery to provide power for the electronic recorder. The switch must use a status switch to determine the start of work.

The scanning button 811 shown in FIG. 8 uses a trigger-type jogging button, and the scanning starts when it is pressed, and the scanning ends when it is lifted.

The working process of the portable electronic recording pen of the third embodiment will be described below with reference to FIG. 9 and FIG. 10 .

During the reading process, when the reader finds that there are several sentences in the book document that he is interested in, the user first turns on the power switch, and the recording pen will automatically check to see if there is a fault, and the working status will be displayed on the display. If there is a fault , then shut down and restart, if it is the same after several times, it needs to be repaired. If the display is normal, continue to operate.

Press the prompt on the display, press the menu scroll and select switch 89 to determine the working mode and status, that is, the scanning or photographing working mode; To determine whether the information stored or transmitted to the external device is original image data or data in text format.

After the working mode and status are determined, the recording pen will execute the corresponding working procedures.

When the working mode is the scanning working mode, the user should aim the viewfinder at the beginning of the content to be scanned, as shown in the top figure in Figure 10, where the black rectangle marks the frame of the viewfinder, press Scan button 811, and move the recording pen at the same time, so that the part to be scanned is always in the viewfinder, until the end of one line of scanning, release the scan button.

The recording pen starts to work, and collects and processes information according to the determined working mode.

It is to be understood that changes and modifications to the above-described embodiments are apparent and expected to be apparent to those skilled in the art. Accordingly, the foregoing detailed description should be considered as an example rather than a limitation, and it should be understood that the following claims, including all equivalents, should determine the spirit and scope of the present invention.

Claims (5)

1. portable electronic recording pen comprises: view finder (2), comprise view-finder (21), and optical system (22) and driving mechanism (23),

Driving mechanism (23) makes optical system (22) will look like to become under the different mode of operations to planar array scanning device (1) according to the imaging parameters of control signal change optical system;

And view-finder (21) is used to make the user can judge whether the page that will be taken pictures is among the imaging region; It is characterized in that also comprising:

Planar array scanning device (1) is used for scanning the page on first direction, converts light signal to the signal of telecommunication;

Controller (3), be used for planar array scanning device (1) electrical signal converted is converted to digital signal, obtain a plurality of first sub-piece and a plurality of second sub-piece, between the adjacent sub-blocks of described a plurality of first sub-pieces, carry out related operation the described a plurality of first sub-piece is synthesized first macro block at described first direction, between the adjacent sub-blocks of described a plurality of second sub-pieces, carry out related operation described a plurality of sub-pieces are synthesized second macro block at described first direction, and with described first direction on described first macro block and described second macro block are synthesized piece image on the vertical second direction, described controller (3) also sends control signal according to switching signal to view finder (2);

Interface (5) is used for the image that controller (3) obtains is sent to the outside;

Memory (7) is used for the program that storing image data and central processing unit are carried out; And mode switch element (8), be used for according to the user need be at standby mode, switch between first mode of operation and second mode of operation, and send switching signal to controller (3).

2. portable electronic recording pen according to claim 1 is characterized in that: also comprise: beginning/end key, when user's decision begins to scan, press described beginning/end key, and begin scanning; When the end of scan, the user unclamps described beginning/end key, the expression end of scan.

3. portable electronic recording pen according to claim 1 is characterized in that: wherein said controller (3) comprising:

A/D converter (31) is used for planar array scanning device (1) electrical signal converted is converted to digital signal, obtains a plurality of first sub-piece and a plurality of second sub-piece;

Central processing unit (32), be used between the adjacent sub-blocks of described a plurality of first sub-pieces, carrying out related operation the described a plurality of first sub-piece is synthesized first macro block at described first direction, between the adjacent sub-blocks of described a plurality of second sub-pieces, carry out related operation described a plurality of sub-pieces synthesized second macro block at described first direction, and with described first direction on described first macro block and described second macro block are synthesized piece image on the vertical second direction;

And control circuit (33), be used for sending control signal to view finder (2) according to switching signal.

4. portable electronic recording pen according to claim 1 is characterized in that: wherein said controller (3) comprising:

A/D converter (31) is used for planar array scanning device (1) electrical signal converted is converted to digital signal, obtains a plurality of first sub-piece and a plurality of second sub-piece;

First buffer (34) is used for described a plurality of first sub-piece of buffer-stored and the described a plurality of second sub-piece;

First correlator (35) is used for carrying out related operation between adjacent sub-piece, up at described first direction the described a plurality of first sub-piece being synthesized first macro block, the described a plurality of second sub-piece is synthesized second macro block;

Second buffer (36) is used for buffer-stored first correlator (35) synthetic described first macro block and described second macro block;

Second correlator (37), be used between the neighboring macro-blocks of described first macro block of second buffer (36) storage and described second macro block, carrying out related operation, on the second direction vertical, described first macro block and second macro block are synthesized piece image, and synthetic image is stored in the memory with described first direction; And control circuit (33), be used for receiving switching signal from mode switch element (8).

5. according to claim 3 or 4 described portable electronic recording pens, it is characterized in that: between the wherein said first adjacent sub-piece, and between the second adjacent sub-piece described first direction overlapping at least first preset width; And described first macro block and described second macro block described second direction overlapping at least second preset width.

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