JPS61273058A - Picture transmitter - Google Patents

Abstract

PURPOSE:To attain the measurement of picture data and the rate of use of a picture memory by applying prescribed calculation between an indication of an address pointer and a memory capacity in storing picture information to the picture memory from a picture input device. CONSTITUTION:When a read command comes, a picture storage start address is set to an address pointer APT 14 of a memory 10 and a start address pointer SAP 15. When the storage is finished, a storage end address pointed by the APT 14 is set to an end address pointer EAP 16. The quantity of picture information stored at present is obtained by subtracting the value of the SAP 15 from that of the EAP 16 and dividing the result by the capacity of all picture memories so as to calculate the rate to all the picture memories and the stored quantity is displayed on a display section 11.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image transmission device having an image memory for storing image data.

[Summary of the Disclosure] - In an image transmission device having an image memory for storing image data, an image transmission device including an image input means for reading one image information and a storage means for storing the image information, from the image input means. first instruction means for instructing a start address for storing the image information of in the storage means;
and second instruction means for indicating an address at the end of storage, and performs a predetermined calculation between the instruction values of the first and second instruction means and the storage capacity value of the storage means. This technology discloses the following technology.

[Prior Art] Conventionally, in an image transmission device/device that temporarily stores image information in an image memory and then transmits the image information, when stored in the image memory, one piece of image data occupies the memory capacity. Since it is unclear how much image data can be stored in the image memory, or how large the monument number 1 area of the image memory is, it is unclear how many images can be stored in the image memory. If the memory does not have an empty area that can hold one image's worth of image data, the transmission operation cannot be performed, causing problems in the operation of the image transmission device.

[Problems to be Solved by the Invention] The present invention has been made in view of the conventional example, and when image data is stored in an image memory, for example, how much of the stored image data amount corresponds to the total image memory amount? An object of the present invention is to provide an image transmission device that can measure the amount of one image data and determine the usage rate of an image memory by displaying the image data.

[Means for solving the problem] As a means for solving this problem, for example, the image transmission apparatus of the embodiment shown in FIG. 1 includes an image input device 3 as an image input means and an image memory as a storage means. 12 and the first
5AP14 as an instruction means, and EAP 16 as a second instruction means.

[Function] - In the configuration shown in FIG. 1, when storing image information from the image input device 3 in the image memory 12, 5AP15 and E
A predetermined calculation is performed between the instruction value of AP 16 and the capacity of image memory 12.

[Examples] Examples of the present invention will be described in detail below with reference to the accompanying drawings.

[Overall configuration diagram of image transmission device (Figure 1)]] The first is a diagram showing the configuration and connections of the image transmission device of this embodiment, where 1 is a transmission path, 2 is an image transmission device, and 3 is a diagram of image information. An image input device 4 performs input; an image output device 4 visually outputs image information; and 5 a console console 5 inputs display requests and data. Reference numeral 6 represents a transmission/reception control unit that performs communication control, and 7 represents a microprocessor that stores firmware in an internal memory 7-1 and controls the image transmission device 2 using the firmware. Reference numeral 8 denotes an interface control unit that controls the interface with the connected image input device 3 and image output device 4.

Reference numeral 10 is a work area for the microprocessor 7 as well as a memory for storing and retaining data, including an image memory 12 for storing image information, address pointers 14 to 16 to be described later, etc., and 11 for storing input/output data, etc. In addition to displaying information, this is a display unit that also displays the amount stored in the image memory.

[Operation Description (FIG. 1) to (FIG. 3)] FIG. 3 shows a flowchart of the image storage amount display process of the firmware stored in the internal memory 7-1 in the image transmission device 2.

In step S1, an image reading instruction is waited for from the image input device 3. When a reading instruction is received, the process proceeds to step S2, and the image storage start address is set to the address pointer A of the memory lO.
Set in PT14 and start address pointer 5AP15. To explain this using FIG. 2, if image information is now stored in the image information storage area 13 of the image memory 12, the address m is the APT 14 and SAP 15.
is set to

In step S3, the image information from the image input device 3 is stored in the storage area 13 of the image memory, and the process proceeds to step S4, where the address pointer APT14 is incremented by one.

In step S5, it is determined whether the storage is finished, and if it is not finished, the process returns to step S3. When storage is completed, step S
At step 6, the storage end address pointed to by the APT 14, address n in the case of FIG. 2, is set in the end address pointer EAP16.

In step S7, the amount of image information that has just been stored is determined by subtracting the value of 5AP15 from EAP16, and the ratio to the total image memory is calculated by dividing this value by the capacity of the total image memory, and step S8 The storage amount is displayed on the display unit 11.

In this embodiment, the ratio of one image information amount to the total image memory capacity is calculated, but the present invention is not limited to this, and for example, the remaining amount of image memory may be displayed.

[Effects of the Invention] As described above, according to the present invention, the amount of image data for one image can be determined and the usage status of the image memory can be clarified, so that operations such as transmission can be easily performed.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of the image transmission apparatus of this embodiment, FIG. 2 is a configuration diagram of an image memory, and FIG. 3 is a flowchart showing image storage amount display processing. In the figure, 1... transmission path, 2... image transmission device, 3...
- Image input device, 4... Image output device, 5... Operation console, 6... Transmission/reception control section, 7... Microprocessor, 8... Interface control section, 10... Memory, 12 ...Image memory, 14...Address pointer APT, 15...Start address pointer SAP,
16... End address pointer EAP. Patent applicant Canon Co., Ltd. Figure 1

Claims (2)

[Claims] (1) In an image transmission device including an image input means for reading image information and a storage means for storing the image information,
a first instruction means for instructing a start address for storing image information from the image input means in the storage means; a second instruction means for instructing an address at the end of storage;
An image transmission apparatus characterized in that a predetermined calculation is performed between an instruction value of the second instruction means and a storage capacity value of the storage means. (2) Displaying the result of performing a predetermined calculation between the indicated values of the first and second indicating means and the storage capacity value of the storage means. Image transmission device.