JPS64685B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a data imprinting device for an endoscope camera, and more particularly, a data imprinting device for an endoscope camera that imprints data onto a long film that is cut into a predetermined length during development. Regarding equipment.

Generally, 16mm film is used for endoscope cameras. Previously, only one type of 16mm film was available: 20 frames. Recently, there has been a demand for long films having a number of frames of 20 or more, such as 40 frames or 60 frames.

However, the automatic processing system and finishing system for photographed film have already been standardized for 20 frames and are fully equipped in countries around the world. Therefore, newly providing each system for long lengths is very complicated and brings about an unnecessary increase in cost.

Therefore, it may be possible to cut out the film every 20 frames. However, after switching, the plurality of film pieces will be developed in the developing system together with the cut film pieces like other long films. Therefore, if film pieces cut and separated from different lengths of film are mixed together, it becomes impossible to know from which length of film the film piece was separated, and the film must be returned to the legitimate client after the phenomenon is over. It had the disadvantage that it could not be done.

This invention was made in view of the above circumstances, and its purpose is to imprint identification data on each block of the film to be cut, so that even if the blocks are separated after cutting, which blocks are common to each other. An object of the present invention is to provide a data imprinting device for an endoscope camera that can identify whether it is separated from a film.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The data imprinting device for an endoscope camera according to the present invention will be described in detail below with reference to FIGS. 1 and 2 of the accompanying drawings.

FIG. 1 shows an endoscope camera 12 with a film cassette 10 housed therein attached to an endoscope 14, which includes an operating section 16 and an operating section 16. 16, which has an irradiation window and an observation window at its tip, and generates an insertion section 18 made of a flexible tube, and photographing light or a collimation target that illuminates the subject area irradiated from the irradiation window. It is composed of a light source device 20 and a guide section 22 that connects the light source device 20 and the operation section 16. An eyepiece section 24 is provided on the side opposite to the side where the insertion section 18 of the operation section 16 is provided, and the endoscope camera 12 is attached to this eyepiece section 24. There is. An image guide (not shown) that connects the observation window and the eyepiece is provided in the insertion section 18, and this image guide passes the image of the subject obtained through the observation window through the image guide. It is for guiding to the eyepiece section 24. In addition, the insertion section 18 and the guide section 2
2 is provided with a light guide that connects the irradiation window and the light source device 20. belongs to.

A film 26 for taking 40 frames is stored in the film cassette 10. The camera 12
A data imprinting device 28 is provided inside the film 26 for imprinting data at a predetermined position on the film 26, in this embodiment the lower portion of the film 26.

As shown in FIG. 2, this data imprinting device 28 is closed in conjunction with the pressing operation of a release button (not shown), and a release switch 30 that outputs a release signal controls the shutter/winding control circuit 32. It is connected to the. This shutter/winding control circuit 32 receives a release signal from the release switch 30, outputs a shutter drive signal to operate a shutter mechanism (not shown), and after the shutter operation is completed, drives a motor to a film winding mechanism (not shown). It is configured to output a signal and a winding completion signal after the motor drive operation is completed. This shutter/winding control circuit 32 is connected to a film counter 34. The film counter 34 is configured to count the winding completion signal and output counting information. This film counter 3
4 is connected to a data control circuit 36 which will be described in detail later. A keyboard 38 is connected to this data control circuit 36 . This data control circuit 3
Reference numeral 6 is configured to control data imprinting, that is, control input, output, and storage of imprint data, in response to instructions from the operator via the keyboard 38.

This data control circuit 36 is connected to a data multiplexer circuit 40 and a memory circuit 42, respectively. A latch circuit 48, which will be described later, is connected to this memory circuit 42.
This memory circuit 42 receives the output from the data multiplexer circuit 40.
It is connected to the. The memory circuit 42 is configured to store the output data of the latch circuit 48 under the control of the data control circuit 36 and to output the stored data.

The data multiplexer circuit 40 includes, in addition to the memory circuit 42, the keyboard 38;
Clock circuit 44 and data input/storage circuit 46
are connected to each other. the keyboard 38
The clock circuit 44 outputs arbitrary data, the clock circuit 44 outputs current time information, and the data input/storage circuit 46 outputs previously input and stored data to the data multiplexer circuit 40. . The data multiplexer circuit 40 is configured to select the various input data and output only one data according to instructions from the data control circuit 36.

The data multiplexer circuit 40 is connected to a latch circuit 48. This latch circuit 48
The data control circuit 36 is connected to.
The latch circuit 48 is configured to latch data from the data multiplexer circuit 40 and output it in response to a command from the data control circuit 36. This latch circuit 48 is a decoder circuit 50
It is connected to the. This decoder circuit 50 is configured to convert the data information output from the latch circuit 48 into a data signal for display, and performs the conversion in response to a shutter drive signal from the shutter/winding control circuit 32. It is configured as follows.

The decoder circuit 50 is connected to a display 52 for data imprinting. This display 52 displays data according to the input of the data signal, and in this embodiment, 7 segments of 4 digits are displayed.
Consists of LEDs. This display 52 is provided at a position facing the data imprinting section 26b of the film 26. An imaging lens 54 is provided between the film 26 and the display 52 to form an image of data light from the display 52 onto the film 26.
is installed.

The data control circuit 36 has a film frame number comparator 36A to which counting information from the film counter circuit 34 is input, as shown in FIG. A setter 36B is connected to the film frame number comparator 36A, and the film frame number comparator 36A is connected to a timing control circuit 36C. This setting device 36B is configured to be able to set an arbitrary number of frames, and in this embodiment, "1" and "21" specify the initial number of frames of each block to be cut during development. are set and outputting these values.

On the other hand, the keyboard 38 is connected to a mode latch circuit 36D. This mode latch circuit 36D is configured to latch data indicating which key is selected among the mode selection keys of the keyboard 38, such as keys for selecting date, free characters, etc. as imprint data. This mode latch circuit 36D is connected to the timing control circuit 36C. This timing control circuit 36C is the memory circuit 4.
2. Selection signal generation circuit 36E and latch circuit 4
8 respectively. This selection signal generation circuit 36E is connected to the data multiplexer circuit 4.
Connected to 0. The timing control circuit 3
6C sets the timing so that the output from the latch circuit 48 is stored in the memory circuit 42 when the count information from the film counter circuit 34 matches the value of "1" of the setter 36B; When the information matches the value "21" of the setter 36B, the selection signal generator 36
E is configured to time multiplexer circuit 40 to select and output data from memory circuit 42 by driving E. In the latter case, the timing control circuit 36C is configured to output a latch signal for latching the output data of the multiplexer circuit 40, ie, the data stored in the memory circuit 42, in the latch circuit 48. Incidentally, when the count information from the film counter circuit 34 does not match both the values "1" and "21" of the setter 36B, the data multiplexer circuit 40 is set according to the mode data set and stored by the mode latch circuit 36D. The selection signal generation circuit 36E is configured to select and control the .

The operation of one embodiment of the data imprinting device for an endoscope camera constructed as described above will be described below.

In response to the pressing operation of a release button (not shown), the release switch 30 is closed, and a release signal is output to the shutter/winding control circuit 32.
The shutter/winding control circuit 32 first outputs a shutter drive signal to a shutter mechanism (not shown). The shutter mechanism receives this shutter drive signal and transfers the subject image onto the surface of the film 26. At this time, the data control circuit 36 receives the shutter drive signal and sends it to the data multiplexer circuit 40 designated in advance via the keyboard 38, to the keyboard 38, clock circuit 44, or data input/storage circuit 46. It is controlled and driven to select and output one of the imprint data. The data signal output from the data multiplexer circuit 40 reaches a latch circuit 48, which receives an output command from the data control circuit 36 and outputs the data signal to a decoder circuit 50. Here, the decoder circuit 50
Since it is in an operating state upon receiving the shutter drive signal from the winding control circuit 32, the input data signal is converted into a display signal and output to the display 52, which displays the data. This display 52
The image of the data displayed is imprinted on the data imprinting portion 26a of the film 26 via the imaging lens 54.

In this way, when the predetermined object and data imprinting operation is completed, the shutter/winding control circuit 32
outputs a data drive signal to a film winding mechanism (not shown) to wind the film 26 by one frame. When this winding drive is completed, the shutter/winding control circuit 32 outputs a winding completion signal to the film counter 34, and the film counter 34 counts the winding completion signal and transmits the counting information to the data control circuit 36 for the number of film frames. Output to comparator 36A. The film frame number comparator 36A compares the count information with "1" preset in the setter 36B, and if they match, the timing control circuit 36C operates the memory circuit 42, and the latch circuit The imprint data of the first frame latched in 48 is stored. Furthermore, if they do not match, the camera enters a shooting standby state.

In this manner, the photographing progresses one after another until a state is reached where the film frame number comparator 36A determines that the count information from the film counter circuit 34 matches "21" set in the setting device 36B. Then, the timing control circuit 36C controls the memory circuit 42.
operates to output the stored imprint data of the first frame to the data multiplexer circuit 40 as identification data, and also drives the selection signal generation circuit 36E, so that the data multiplexer circuit 40 outputs the stored data to the data multiplexer circuit 40 as identification data. The latch circuit 48 selects and outputs the output data from the latch circuit 48.
is in the operating state. Thereafter, in the same manner as described above, in the data imprinting section 26a of the "21" frame,
As shown in FIG. 4, the same information as the "1" frame is imprinted. That is, when cutting every 20 frames to use a general phenomenon system, the same data is imprinted on the first frame of the two cut film pieces, that is, the 1st frame and the 21st frame. It is immediately clear that these film pieces were cut from the same long film.

As described above, according to this embodiment, the imprint data of the first frame of each block of a long film for taking 40 frames is the same.

Therefore, in order to be able to apply it to a general phenomenon system, even if a film for 40 frames is cut into 20 frames, it is easy to determine which length of film the developed film pieces were made from. ,and,
Be able to identify with certainty.

Furthermore, since it is only necessary to add a memory circuit to the conventional data imprinting circuit, the configuration is simple.

In the above embodiment, the number of frames to be imprinted with the same data on each film piece was explained as being the 1st frame, which is the first frame of each film piece, and the 21st frame. However, without being limited thereto, for example, as shown in FIG. It may also be configured to include data. Further, as long as it is made clear in advance, the number of pieces within each block is not limited and may be anywhere.

Further, the identification data is not limited to numbers, and can be any type of alphabetic characters, written words, pictures, etc., and the same effects as in the above embodiments can be obtained.

Furthermore, the number of pieces in one block is not limited to 20 pieces, and may be any number of pieces, and this number may vary from block to block.

As described in detail above, the data imprinting device for an endoscope camera according to the present invention treats a plurality of preset frames as one block, and detects from each block that they are formed from the same film. , an identification data generation means for outputting identification data indicating that the films are formed from the same film, a storage means for storing the identification data, a counting means for counting the number of frames on the film, and a counting means for counting the number of frames on the film; When the number of counted pieces detects the predetermined number of pieces,
It is characterized by comprising a data selection means for selecting and outputting the identification data stored in the storage means, and a data imprinting means for imprinting the identification data selected and outputted by the data selection means onto the film. . Therefore, data for an endoscope camera that imprints identification data on each block of the film to be cut so that even if each block is separated after cutting, it is possible to identify which block has been separated from a common film. An imprinting device can be provided.

[Brief explanation of drawings]

FIG. 1 is a side view showing an endoscope camera equipped with an embodiment of the data imprinting device according to the present invention together with an endoscope, and FIG. 2 schematically shows the configuration of the data imprinting device. Block diagram, Figure 3 is the second
FIG. 4 is a block diagram showing the data control circuit shown in more detail, FIG. 4 is a diagram showing a film having data imprinted by the data imprinting device of this embodiment, and FIG. 5 is a diagram showing another embodiment. FIG. 3 is a diagram showing a film having data imprinted by an example data imprinting device. 12... Endoscope camera, 28... Data imprinting device, 34... Film counter circuit, 36
...Data control circuit, 40...Data multiplexer circuit, 42...Memory circuit, 52...Display device.

Claims (1)

[Scope of Claims] 1. Data generating means for outputting data to be imprinted on a predetermined frame of a first block, with a plurality of preset frames as one block, and each block formed from the same film. storage means for detecting this and storing identification data to be imprinted on each block after the second block in correspondence with the data to indicate that the blocks are formed from the same film, and the number of frames of the film. a counting means for counting the number of pieces, and a second number of pieces counted by this counting means.
a data selection means for selecting and outputting the identification data stored in the storage means when a predetermined number of frames set for each block after the block is detected; and a data imprinting means for imprinting each data. A data imprinting device for an endoscope camera, characterized by comprising: 2. The data imprinting device for an endoscope camera according to claim 1, wherein the storage means is a read-only storage circuit for specific identification data.