JP3081711B2 - camera - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera, and more particularly, to a camera using a film having a recording section for recording information, and capable of recording positioning data indicating a photographing position in the recording section. is there.

[0002]

2. Description of the Related Art In recent years, many proposals have been made regarding cameras using a film having a recording section for recording information such as photographing information. In a camera that magnetically records, on the film, shooting position information indicating a shooting location as the shooting information in correspondence with a shooting frame, the shooting position is captured as positioning data by receiving means provided in the camera, and the positioning data is stored in the film. Various proposals have also been made regarding cameras for recording in a magnetic recording unit.

A camera capable of recording position information disclosed in Japanese Patent Application Laid-Open No. 4-70724 is a GPS (Global Positioning).
SYSTEM) This camera has a built-in receiver and can automatically record positioning data obtained from the GPS receiver in a recording unit of a film in correspondence with a shooting screen. Note that the GPS is a high-accuracy positioning system that receives transmission data from four artificial satellites with a terrestrial receiver and measures the three-dimensional position of the location located at the receiver from the received data. is there. Further, the camera capable of recording position information disclosed in Japanese Patent Application Laid-Open No. 4-70735 has positioning means as a GPS receiver, and location code receiving means for receiving a location code transmitted from a sightseeing spot or an event venue. Camera. In this camera, when the location code can be received, the location code data captured by the location code receiving means is recorded in the recording unit of the corresponding photographed frame on the film. However, in a state in which the location code cannot be received, the positioning data captured by the GPS receiver is recorded in the recording unit of the corresponding photographed frame on the film.

[0004]

However, Japanese Patent Application Laid-Open Nos. 4-70724 and 4-7073 described above.
The camera capable of recording position information disclosed in Japanese Unexamined Patent Application Publication No. 5 (2005) is used in places where radio waves are difficult to reach, for example, behind obstacles or inside buildings,
Alternatively, when photographing in a place such as an underground or the like, the positioning data or the place code data cannot be taken into the camera, and it is impossible to record the photographing place corresponding to the photographing frame only in that part.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and even if the photographing is performed in a place where the positional information of the photographing place cannot be obtained, the positional information related to the photographing place can be captured. It is an object of the present invention to provide a camera capable of recording the information on a photographic film.

[0006]

According to the present invention, there is provided a camera which uses a film having a recording unit for recording information, receives a positioning signal indicating position information, and outputs positioning data indicating the position information. Positioning means for performing positioning, positioning data storage means for storing the positioning data, reception state determining means for determining whether or not the positioning means can receive a positioning signal, and recording for recording the positioning data to a film recording unit Means.

[0007]

When the receiving state determining means determines that the positioning means can receive the positioning signal, the positioning data output from the positioning means is stored in the positioning data storage means, and the positioning data is stored in the positioning data storage means. Recording is performed on the recording portion of the film by the recording means. If the receiving state determining means determines that the positioning means cannot receive the positioning signal, the positioning data stored in the positioning data storage means is read out, and the recording means of the film is read by the recording means. Record the positioning data.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. The camera according to the present embodiment is a camera using a film having a magnetic recording unit for recording information, and has a built-in position information recording unit for recording position information in the magnetic recording unit. First, the outline of the position information recording unit will be described.

FIG. 1 is a main block diagram of a position information recording device for a camera according to this embodiment. The position information recording apparatus includes a CPU 1 which is a microcomputer for controlling each control element of a camera, a positioning means 2 for performing positioning by receiving position information via a system such as the GPS, and a positioning means 2 for positioning. Means for determining whether or not the means has received position information, that is, for determining whether or not positioning has been performed; and storing positioning data output from the positioning means 2; and storing the stored contents on a film. It comprises a storage means 4 capable of outputting to the CPU 1 for magnetic recording, and a magnetic recording means 5 for recording on a magnetic recording section of the film.

The storage means 4 is actually a RAM (RANDOM ACCESS MEMORY) or an EEPROM (EL
ECTRICALLY ERASABLE PROGRAMMABLE READONLY MEMORY)
And so on. As a recording method in the magnetic recording means 5, in this embodiment, a method of magnetic recording on a magnetic track provided on a film is used. However, in addition to the magnetic recording means, a method using an electronic storage method for writing data in an EEPROM provided in the cartridge can be applied. These records are recorded in correspondence with the photographed images.

FIG. 2 is a flow chart of the position information fetching operation of the position information recording device of the camera according to the present embodiment. After the release, specifically, when the switch signal of the first stage of the release is input, the subroutine of FIG. 2 is called. Then, the positioning unit 2 performs a positioning process, which is a process of capturing the photographing position information via the GPS (step S1). Based on the output of the positioning means 2, the reception state determining means 3 determines whether or not positioning has been performed (step S2). If positioning has been performed, the positioning data is written into the storage means 4 (step S3), and the data is recorded on a film.

On the other hand, in the determination processing in step S2, the reception state determination means 3 determines that the current shooting location is in a state where positioning, which is the measurement of the position via the GPS, cannot be performed.
, That is, the place where the photographing is going to be performed is indoors or a valley of a building, and G
If it is a place where it is difficult to catch the communication radio wave from the PS, the process proceeds to step S4, and the positioning data already stored in the storage unit 4 is read out (step S4).
4). Then, the data is set in a state where it can be magnetically recorded on the film, and the processing of this routine is terminated.

The positioning data already stored in the storage means 4 is the positioning data written in the storage means 4 when the positioning was performed during the previous photographing. Therefore, it can be said that the positioning data is position information of the vicinity of the current shooting location or a related location. Further, the recording operation of the above-mentioned position information recording apparatus performed the positioning processing after the release, but the positioning processing is performed when the power switch is turned on, and at the time of the release, only the positioning data stored in the storage means 4 is read. The release interval can be shortened.

FIG. 3 is a block diagram showing the overall configuration of the camera of the present embodiment. The camera comprises a microprocessor (CPU) 1 for controlling the entire camera, and a photometric circuit 1
2, a distance measurement circuit 13, a shutter control mechanism 14, a focus adjustment mechanism 15, a display circuit 16 for displaying various information such as shooting information and date, and a timing circuit 17 for forming date data. A storage circuit (EEPROM) 18 for temporarily storing magnetically recorded information;
1, a photometry / distance measurement start switch 26, an exposure start switch 27, a rewind start switch 28, and a circuit 19 for recording / reproducing magnetic information, which is the magnetic recording means 5 of FIG. The magnetic recording means 5 records data from the magnetic information recording / reproducing circuit 19 on a magnetic recording portion on the film 21 or reads out a signal recorded on the magnetic recording portion on the film 21 to read / write magnetic information on / from the magnetic recording portion. Reproduction circuit 1
9, a drive circuit 23 for controlling the film feed amount, and a feed mechanism 24 for feeding the film 21 with a magnetic recording section based on a drive signal of the drive circuit 23. A film feed amount detection circuit 22 for detecting the feed amount of the film 21, and a positioning receiving circuit 30 which is the positioning means 2 of FIG. 1 and receives positioning data from the GPS at the shooting position. Is done. In addition, although not shown in FIG. 3, a reception state determination unit 3 (see FIG. 1) for determining the reception state of the positioning data is built in the camera.

Next, the photographing sequence process of the camera according to the present embodiment configured as described above will be described with reference to the flowchart of FIG. First, in step S11, when the photometry / ranging start switch 26 is turned on,
Proceeding to step S12, photometry and distance measurement are executed by the photometry and distance measurement subroutine. Then, in step S13, the positioning processing subroutine is called. This positioning processing is the processing shown in the flowchart of FIG. 2, and the positioning data is taken in from the GPS via the positioning receiving circuit 30 or the positioning data is changed depending on the reception state in the shooting environment at that time. If it is determined that the data cannot be captured, the positioning data already stored in the storage circuit 18, that is, the positioning data read at the time of the previous shooting is read.

Subsequently, in step S14, the process waits until the exposure start switch 27 is turned on. When the switch 27 is turned on, the process proceeds to step S15, where a focus adjustment operation is performed. Then, exposure is performed in step S16. Further, in step S17, the film feeding mechanism 24 is operated to start film winding. Then, in step S18, while the film is being wound,
Although details of the operation will be described later, the data to be recorded is transferred to the magnetic recording / reproducing circuit 19 to perform the magnetic recording operation. In steps S19 and S20, after the completion of winding is confirmed, the operation of the film feeding mechanism 24 is stopped.
Then, in step S21, the same positioning data as the above-described magnetically recorded data is stored in the storage circuit 18, and the main photographing sequence ends.

Next, using the circuit diagram of the magnetic recording / reproducing circuit 19 shown in FIG. 5 and the time chart of the magnetic recording / reproducing operation shown in FIG. 6, the magnetic recording / reproducing operation for the film magnetic recording portion in the camera of this embodiment will be described. Will be described. In the magnetic recording operation of this camera, the magnetic recording medium can have three states of magnetization in the N direction, S state, and neutral. Assume that the magnetization state in the N direction is bit data 1 and the magnetization state in the S direction is bit data 0. When the bit data 1 is recorded, the output port OUT1 of the CPU 1 is used.
When the "H (HIGH)" signal is output to the terminal (FIG. 6 (a)),
A current I1 flows through the coil of the recording head 20a via the buffer 21. At this time, the magnetic recording medium is magnetized in the N direction (FIG. 6D). Conversely, when recording bit data 0, if an "H" signal is output to the output port OUT0 of the CPU 1 (FIG. 6 (b)), the coil of the recording head 20a of the magnetic head 20 through the buffer 22 , A current I0 flows and is magnetized in the S direction (FIG. 6 (d)). The advantage of this method is that since a neutral region is provided between bits, the boundary of the bit data becomes clear, and a synchronous clock is not required. FIG. 6 is a time chart when the recording data is 101100 (binary code). In the figure, TON indicates a recording signal on period, and TOFF indicates a recording signal off period.

In the case of reproducing, when the magnetized portion moves in front of the reproducing head 20b of the magnetic head 20, an output voltage is generated because the magnetic field passing through the head 20b changes. The voltage is amplified by a head amplifier 25 constituting the magnetic recording / reproducing circuit 19 ((e) in FIG. 6), and a differentiation circuit 26
((F) in FIG. 6) and input to the comparators 27 and 28. When the recorded data is 1, the differential output (f) has a negative peak, so that the output of the comparator 27 is inverted and the "H" signal is input to the input port IN1 of the CPU 1 ((g) in FIG. 6). ). Conversely, when the recorded data is 0, the differential output ((f) in FIG. 6) has a positive peak, so that the comparator 28 is inverted and the "H" signal is input to the input port IN0 of the CPU 1 ( (H) of FIG. 6).

As described above, in the camera of the present embodiment, when recording the photographing position data on the film,
It is processed to take in positioning data from the PS. However, when the shooting location is in a room where radio waves for communication from the GPS do not reach, or in the shadow of a building or in a basement, positioning data cannot be captured. Therefore,
In the present embodiment, the positioning data at the time of shooting is stored in the storage means, and when the positioning data cannot be captured as described above, the positioning data at the time of the previous shooting is stored in the shooting position data. And magnetically recorded on the corresponding film frame. In this way, it is possible to magnetically record the shooting position data corresponding to all the shooting frames.

In the camera of the above-described embodiment, the photographing position data is magnetically recorded on the film. However, as the recording means, an electronic storage method for writing data into an EEPROM provided in the patrone is used. It is also possible. In this embodiment, the position data is magnetically recorded for each frame, but as a modification, the position data corresponding to each frame is stored in the storage circuit, and the shooting of all films is completed. A camera that magnetically records position data corresponding to each frame during rewinding after the rewinding can also be proposed.

[0021]

As described above, the camera of the present invention stores positioning data measured at a location where positioning is possible, and stores the data when shooting at locations where positioning is not possible, such as indoors and underground. Since the positioning data is used, there is a remarkable effect that the position information can be recorded corresponding to the photographic frame of the photographic film in any situation.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of a camera position information recording device according to an embodiment of the present invention.

FIG. 2 is a flowchart of a position information capturing operation of the position information recording device of the camera.

FIG. 3 is a main block configuration diagram of the camera of FIG. 1;

FIG. 4 is a flowchart of a shooting sequence of the camera shown in FIG. 1;

FIG. 5 is a circuit diagram of a magnetic recording / reproducing circuit of the camera of FIG. 1;

FIG. 6 is a time chart in the magnetic recording / reproducing process of the camera of FIG. 1;

[Explanation of symbols]

 2 Positioning Means 3 Reception State Judgment Means 4 Positioning Data Storage Means 5 Magnetic Recording Means 18 ............ Storage circuit (positioning data storage means) 19 ... Magnetic recording / reproducing circuit (magnetic recording means) 20a ... Magnetic recording head (magnetic recording means) 21,22 ... Buffer (magnetic recording means) 30 positioning receiving circuit (positioning means)

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G03B 17/24

Claims (1)

(57) [Claims] 1. A camera using a film having a recording unit for recording information, a positioning means for receiving a positioning signal indicating position information and outputting positioning data indicating the position information, and storing the positioning data. Positioning data storage means, a receiving state determining means for determining whether the positioning means can receive a positioning signal, and a recording means for recording the positioning data on a film recording unit. If the receiving state determining means determines that the positioning signal can be received by the positioning means, the positioning data output from the positioning means is stored in the positioning data storage means, and the positioning data is stored in the storage means by the recording means. If the receiving state determining means determines that the positioning signal cannot be received by the positioning means, the positioning data storage means Read positioning data stored, camera and recording said measured position data in the recording unit of the film by the recording means.