JPH0983929A - Video processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To composite picture data inputted and outputted by video synchronization. SOLUTION: A video-synchronized input data 922 and a video-synchronized output data 9101 are computed by an arithmetic part 9007 and the result is stored in a memory. Thereby a picture in the memory and the video input picture can be composited in real time. Then plural independent video synchronized data 9101 and 9102 are arithmetically outputted to the same memory area by an arithmetic part 9009 to attain video output by compositing the plural pictures in the memory in real time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing device for calculating video synchronization data.

[0002]

2. Description of the Related Art Conventionally, in the case of calculating (combining) data such as images of a digital copying machine which are input and output in synchronization with video, the following method is used. (1) Data input from two or more independent video synchronization input means (for example, data read by a scanner of a digital copying machine and data sent from a computer) are calculated and stored in a memory, or Output with video synchronization. (2) The data input in the video synchronization and the data stored in the memory are calculated and output in the video synchronization. (3) All video data is temporarily stored in the memory, and the CPU or the like externally processes the data.

[0003]

However, in the above-mentioned conventional example, the image data input by video synchronization and the image data in the memory are operated (combined), and the result is stored again in the same memory. It has not been possible to calculate (composite) and output a plurality of image data in the same memory area in video synchronization.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an image processing apparatus capable of synthesizing image data input / output in video synchronization.

[0005]

In order to achieve the above object, the image processing apparatus of the present invention has the following configuration.

That is, storage means for storing data, input means for inputting data in video synchronization, and output means for outputting data stored in the storage means in video synchronization,
An arithmetic unit for arithmetically operating the data input by the input unit and the data output by the output unit is provided.

In order to achieve the above object, another image processing apparatus of the present invention has the following configuration.

That is, a storage means for storing data, a plurality of output means for outputting the data stored in the storage means in video synchronization, and an operation means for operating each data output by the plurality of output means. And output means for outputting the data calculated by the calculation means.

In order to achieve the above object, another image processing apparatus of the present invention has the following configuration.

That is, storage means for storing data, input means for inputting data in video synchronization, a plurality of output means for outputting data stored in the storage means in video synchronization, and input means by the input means. The data calculated by the calculation means is stored in the storage means.

In such a configuration, the video synchronization input data and the video synchronization output data are calculated, and the calculation result is stored. Calculates and outputs multiple video sync output data.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a block diagram showing the arrangement of an image processing apparatus according to this embodiment. As shown in the figure, the reader unit 1 optically reads a document and outputs image data corresponding to a document image to a printer unit 2 or an image input / output control unit 3 described later. The printer unit 2 records an image according to the image data from the reader unit 1 or the image input / output control unit 3 on recording paper. The image input / output control unit 3 is connected to the reader unit 1 and includes a facsimile unit 4, a file unit 5, a computer interface unit 7, a formatter unit 8, an image memory 9, a core unit 10, and the like.

Next, each section of the above-mentioned image input / output control section 3 will be described in more detail. First, the facsimile unit 4 decompresses the compressed image data received via the telephone line, transfers the decompressed image data to the core unit 10, or compresses the image data transferred from the core unit 10 and compresses it. The compressed image data thus compressed is transmitted via a telephone line. A hard disk 12 is connected to the facsimile unit 4 so that the received compressed image data can be temporarily stored. Further, a magneto-optical disk drive unit 6 is connected to the file section 5, and the file section 5 compresses the image data transferred from the core section 10, and a magneto-optical disk together with a keyword for searching the image data. The data is stored in the magneto-optical disk set in the drive unit 6. The file unit 5 searches the compressed image data stored in the magneto-optical disk based on the keyword transferred via the core unit 10, reads out the searched compressed image data and decompresses the decompressed image data. Is transferred to the core unit 10.

Next, the computer interface section 7
Is an interface between a personal computer or workstation (PC / WS) 11 and the core unit 10. The formatter unit 8 expands the code data representing the image transferred from the PC / WS 11 into image data that can be recorded by the printer unit 2. The image memory unit 9 will be described later in detail, but via the core unit 10. The transferred data is temporarily stored and desired image processing is performed if necessary. The core unit 10 controls the flow of data among the reader unit 1, the facsimile unit 4, the file unit 5, the computer interface unit 7, the formatter unit 8, and the image memory unit 9, which will be described in detail later. It is a thing.

FIG. 2 is a sectional view showing the structure of the reader unit 1 and the printer unit 2. Document feeder 10 of reader unit 1
1 is a platen glass 10 one by one in order from the last page
2, the original is discharged from the platen glass 102 after the original reading operation is completed. When the original is conveyed onto the platen glass 102, the lamp 103 is turned on and the original is exposed and scanned while moving the scanner unit 104. The reflected light from the original at this time is reflected by the mirrors 105, 106, 107 and the lens 108 to C
It is guided to a CD image sensor (hereinafter referred to as “CCD”) 109. In this way, the image of the scanned original is CCD
Read by 109. Then, the image data output from the CCD 109 is subjected to predetermined processing and then transferred to the printer unit 2 and the core unit 10 of the image input / output control unit 3.

On the other hand, the laser driver 22 of the printer unit 2
Reference numeral 1 drives the laser emission unit 201 to emit laser light corresponding to the image data output from the reader unit 1 to the laser emission unit 20.
Make 1 emit light. This laser light is applied to the photosensitive drum 202, and a latent image corresponding to the laser light is formed on the photosensitive drum 202. A developer is attached to the latent image portion of the photosensitive drum 202 by a developing device 203. Then, at the timing synchronized with the start of laser light irradiation, the cassette 20
4 and the cassette 205, the recording paper is fed and conveyed to the transfer unit 206, and the recording material attached to the photosensitive drum 202 is transferred to the recording paper.

The recording sheet on which the recording agent is placed is conveyed to the fixing section 207, and the recording agent is fixed on the recording sheet by the heat and pressure of the fixing section 207. The recording paper that has passed the fixing unit 207 is ejected by the ejection roller 208, and the sorter 220 stores the ejected recording paper in each bin and sorts the recording paper. Note that the sorter 220 stores the recording paper in the uppermost bin when the sorting is not set. When double-sided recording is set, the recording sheet is conveyed to the discharge roller 208, the rotation direction of the discharge roller 208 is reversed, and the recording paper is guided to the re-feed conveyance path by the flapper 209.
When multiplex recording is set, the flapper 209 guides the recording sheet to the re-feeding conveyance path so as not to convey it to the discharge roller 208. The recording paper guided to the re-feeding conveyance path is fed to the transfer unit 206 at the above-described timing.

FIG. 3 is a block diagram showing the configuration of the reader unit 1. First, the image data output from the CCD 109 is analog / digital sample hold (A / D).
The (SH) unit 110 performs A / D conversion and shading correction. Next, the A / D / SH section 11
The image data processed by 0 is transferred to the printer unit 2 via the image processing unit 111, and the core unit 10 of the image input / output control unit 3 via the interface unit 113.
Transferred to Then, the CPU 114 controls the image processing unit 111 and the interface (I / F) 113 according to the setting content set from the operation unit 115. For example,
When the copy mode in which the trimming process is performed by the operation unit 115 to perform copying is set, the image processing unit 111 performs the trimming process and transfers the trimming process to the printer unit 2. When the facsimile transmission mode is set on the operation unit 115, the core unit 10 sends a control command corresponding to the image data and the set mode from the interface 113.
Transfer to. Such a control program of the CPU 114 is stored in the memory 116, and the CPU 114 performs control while referring to the memory 116. Also, memory 1
16 is also used as a work area of the CPU 114.

FIG. 4 is a block diagram showing the structure of the core section 10. First, the image data from the reader unit 1 is transferred to the data processing unit 121 via the interface 122, and the control command from the reader unit 1 is sent to the CPU 1
23. Here, the data processing unit 121 performs image processing such as image rotation processing and scaling processing, and the image data transferred from the reader unit 1 to the data processing unit 121 is controlled by the reader unit 1. It is transferred to the facsimile section 4, the file section 5, the computer interface section 7, and the image memory section 9 via the interface 120 according to the command.

Further, the computer interface section 7
The code data representing the image input via the is transferred to the data processing unit 121 and then transferred to the formatter unit 8 to be expanded into image data. This image data is transferred to the data processing unit 121 and then to the facsimile unit 4, the printer unit 2, and, if necessary, the image memory unit 9. The image data from the facsimile section 4 is transferred to the data processing section 121 and then to the printer section 2, the file section 5, the computer interface section 7, and the image memory section 9. The image data from the file unit 5 is transferred to the data processing unit 121, and then transferred to the printer unit 2, the facsimile unit 4, the computer interface unit 7, and the image memory unit 9. CPU12
3 performs such control according to the control command stored in the memory 124. The memory 124 is the CPU 123.
It is also used as the control area of. In this way, the core portion 10
It is possible to perform processing that combines functions such as reading an original image, printing an image, transmitting and receiving an image, storing an image, and inputting / outputting data from a computer.

FIG. 5 is a block diagram showing the configuration of the image memory unit 9. Here, the I / F 901 is the core unit 10.
Is connected to the I / F 120. This I / F 901 interfaces four signals. The signal 921 is sent to the core unit 10 and the CP via the dual port memory 902.
These are commands and messages exchanged with the U903. Signals 922 and 923 are video data input and video data output, respectively, which are commands given from the core unit 10 and video data to be exchanged with the core unit 10 in synchronization with the video control signal 926.

The above-mentioned signals 922 and 923 have a width of 8 bits, and image data up to 256 gradations are input and output in video synchronization. The video control signal 926 includes a video clock (VIDEOCLK) and a vertical synchronization signal (V
SYNC), vertical valid signal (VEN), horizontal synchronizing signal (HSYNC), and horizontal valid signal (HEN).
The memory controller 904 writes video input data from the core unit 10 to the memory 905 (signal 922) or reads video output data from the memory 905 to the core unit 10 (signal 92) according to the setting from the CPU 903.
3) The CPU 903 controls access (signal 924) to the data in the memory 905.

FIG. 6 is a block diagram showing the configuration of the memory controller 904. Here, the memory access control unit 9001 generates an access signal to the memory 905 by the signal from the arbitration unit 9002,
Exchange data with 05. The arbitration unit 9002
Control arbitration is performed for access requests from a plurality of control units described later, and appropriate access requests are issued to the memory access control unit 9001. The video input control unit 9003 synchronizes with the video control signal 926 or a control signal internally generated, inputs and stores the signal 922, and issues an access request to the arbitration unit 9002. The signal 922 has an 8-bit width, and depending on the setting, 2 gradations (only the upper 1 bit), 16 gradations (the upper 4 bits), 2
It is possible to store 56 gradations (8 bits) in the memory.

The video output 1 control section 9004 is
An access request is issued to the arbitration unit 9002, and a signal 923 is output in synchronization with the video control signal 926 or a control signal internally generated. The signal 923 has a width of 8 bits, and depending on the setting, 2 gradations (only the upper 1 bit),
The data stored in the memory as 16 gradations (upper 4 bits) and 256 gradations (8 bits) is expanded to 8 bits and output. The video output 2 control unit 9005 is the same as the video output 1 control unit 9004, and the description thereof will be omitted. The CPU access control unit 9006
Arbitration unit 900 for the access signal from CPU 903
2, a memory access request is issued to the CPU 2, and data is exchanged between the CPU 903 and the memory 905 in accordance with a signal from the arbitration unit 9002.

On the video input side, more specifically, the arithmetic unit 9
There is 007. The calculation unit 9007 uses the video input signal 92.
2 and the video output 2 signal 9101 between the CPU 90 and
The calculation set by 3 is performed. The types of operations are product
There are Japanese and large sizes. The calculation is realized by logic, and the calculation is performed in real time for each data.
When the signal 922 is stored as it is in the memory without performing the calculation, the selector 9008 is set accordingly. Similarly, the video output side also has a calculation unit 9009, which performs calculation between the video output 1 data 9102 and the video output 2 data 9101. The configuration of the arithmetic unit 9009 is the same as that of the arithmetic unit 9008 on the video input side. still,
When the signal 923 is output without performing the calculation, the selector 9010 is set accordingly. Further, since the video input, the video output 1 and the video output 2 are completely independent and the gradations can be set respectively, it is possible to calculate (synthesize) images having different gradations.

[Other Embodiments] Next, other embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 7 is a block diagram showing the structure of a reader unit according to another embodiment. In this embodiment, the reader unit includes a memory controller 117 and a memory 118. With the configuration shown in FIG. 7, first, the image data output from the CCD 109 is subjected to A / D conversion in the A / D / SH unit 110 and shading correction.
Then, the image data processed by the A / D / SH unit 110 is stored in the memory 118 via the memory controller 117, if necessary. Here, the image data stored in the memory 118 is transferred from the memory controller 117 to the printer unit 2 via the image processing unit 111, and the core unit 10 of the image input / output control unit 3 via the interface unit 113. Transferred to. The operations of the memory controller 117 and the memory 118 are the same as those in the above-described embodiment, and the description thereof will be omitted.

As described above, by providing the means for calculating the video synchronization input data and the video synchronization output data and storing the result in the memory, the image in the memory and the video input image can be combined in real time. Further, by providing a unit for outputting a plurality of independent video synchronization data and a unit for calculating to the same memory area, a plurality of images stored in the memory can be combined in real time to output the video. Therefore, there is an effect that the productivity of data calculation is significantly improved.

The present invention also provides a "host computer,
The invention may be applied to a system including a plurality of devices such as an interface and a printer, or to an apparatus including a single device such as a copying machine.

[0031]

As described above, according to the present invention,
By combining the image data input / output in the video synchronization, the convenience of the device can be improved.

[0032]

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an image processing apparatus according to the present embodiment.

FIG. 2 is a cross-sectional view showing structures of a reader unit 1 and a printer unit 2.

FIG. 3 is a block diagram showing a configuration of a reader unit 1 according to the present embodiment.

FIG. 4 is a block diagram showing a configuration of a core unit 10;

5 is a block diagram showing a configuration of an image memory unit 9. FIG.

FIG. 6 is a block diagram showing a configuration of a memory controller 904.

FIG. 7 is a block diagram showing a configuration of a reader unit according to another embodiment.

[Explanation of symbols]

 1 reader section 2 printer section 3 image input / output control section 4 facsimile section 5 file section 6 magneto-optical disk drive unit 7 computer interface section 8 formatter section 9 image memory section 10 core section

Claims (10)

[Claims] 1. Storage means for storing data, input means for inputting data in video synchronization, output means for outputting data stored in the storage means in video synchronization, and data input by the input means An image processing apparatus comprising: a calculation unit that calculates data output by the output unit. 2. A selection means for selecting either the data input by the input means or the data calculated by the calculation means is provided, and the data selected by the selection means is stored in the storage means. The image processing apparatus according to claim 1, wherein 3. The image processing apparatus according to claim 1, wherein the input unit is an image reading device. 4. The image processing apparatus according to claim 1, wherein the output unit is an image recording apparatus. 5. Storage means for storing data, a plurality of output means for outputting the data stored in the storage means in video synchronization, and a computing means for computing each data output by the plurality of output means. An image processing apparatus comprising: an output unit that outputs the data calculated by the calculation unit. 6. A selection means for selecting either the data output from one output means or the data calculated by the calculation means, and outputting the data selected by the selection means. The image processing apparatus according to claim 5. 7. The image processing apparatus according to claim 5, wherein the output unit is an image recording apparatus. 8. Storage means for storing data, input means for inputting data in video synchronization, a plurality of output means for outputting data stored in the storage means in video synchronization, and input by the input means. An image processing apparatus, comprising: an arithmetic unit that arithmetically operates the data output from one output unit, and stores the data calculated by the arithmetic unit in the storage unit. 9. The image processing apparatus according to claim 8, wherein the input unit is an image reading apparatus. 10. The image processing apparatus according to claim 8, further comprising output means for outputting the data calculated by the calculation means, wherein the output means is an image recording device.