JP2005005842A - Digital camera and film camera - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a digital camera capable of easily imaging an object at an appropriate timing. <P>SOLUTION: The digital camera is provided with a storage means for storing sound source data, an imaging instructing means having a pressing button and a sensor for outputting an imaging preparation signal when the pressing button is pressed to an intermediate position and outputting an imaging start signal when the pressing button is fully pressed, a sounding means for reproducing the sound source data stored in the storage means to make a sound (S110) when the imaging start signal is outputted from the sensor (S105), and an imaging means for imaging the object to output a digital image (S120) when the imaging start signal is outputted from the sensor (S115). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a digital camera and a film camera.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there has been known a digital camera that includes a speaker that attracts the interest of a subject by sound emission and that enables imaging at a predetermined timing (see, for example, Patent Document 1).
Patent Document 1 discloses a digital camera that outputs a sound that attracts the interest of a subject and images the subject at a predetermined timing during sound reproduction (paragraphs 0051 to 0055). Patent Document 1 discloses a digital camera in which sound reproduction is started in conjunction with a command sent from a shutter control unit (paragraph 0046).
[0003]
[Patent Document 1]
JP 2002-330327 A
[0004]
[Problems to be solved by the invention]
However, when imaging is performed at a predetermined timing during sound reproduction, there is no guarantee that the timing coincides with the photo opportunity, and thus imaging may be performed at an inappropriate timing.
Even when sound reproduction is started in conjunction with a command sent from the shutter control unit, the time interval from the start of sound emission to imaging is necessarily set to a predetermined length. There is a possibility that imaging is performed at an appropriate timing.
[0005]
The present invention has been created to solve these problems, and an object of the present invention is to provide a digital camera and a film camera that make it easy to image a subject at an appropriate timing.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a digital camera according to the present invention includes a storage means for storing sound source data, a push button, and outputs an imaging preparation signal when the push button is pushed to an intermediate position, so that the push button is completely An imaging instruction unit having a sensor unit that outputs an imaging start signal when pressed, and a sound emitting unit that reproduces and emits sound source data stored in the storage unit when an imaging preparation signal is output from the sensor unit. Imaging means for imaging a subject and outputting a digital image when an imaging start signal is output from the sensor unit. The sound is emitted at the timing when the push button for instructing to start imaging is pushed into the intermediate position, and the subject is imaged at the timing when the push button is completely pushed, so that the time interval from the start of sound emission to the imaging is set as the subject. The user can adjust it according to the movement of the camera. Further, by adjusting the time interval from the start of sound emission to imaging by a continuous operation of increasing the push amount of the push button, the user can easily perform imaging at an appropriate timing.
[0007]
In order to achieve the above object, a digital camera according to the present invention includes a storage unit that stores sound source data, a sound output unit that reproduces and emits sound source data stored in the storage unit, and a sound output unit. A sound emission instructing unit for instructing the start of sound emission, an imaging instruction unit for instructing the start of imaging, an optical system and an image sensor, and imaging a subject when the imaging instruction unit instructs the start of imaging Imaging means for outputting a digital image, and focus control means for driving the optical system to focus on the subject following the movement of the subject when the sound emission instructing means is instructed to start sound emission. It is characterized by that. During the period from when the user gives an instruction to start sound emission to when the image is taken, the user follows the movement of the subject and drives the optical system to focus on the subject, so that the user takes the timing to give an instruction to start the imaging. Since it becomes easy to concentrate, the user can easily take an image at an appropriate timing. Further, by starting driving the optical system after the sound emission is started, it is possible to reduce power consumption for driving the optical system following the movement of the subject.
[0008]
Furthermore, in the digital camera according to the present invention, the sound emitting means repeatedly reproduces sound source data until the imaging start means is instructed to start imaging. By repeatedly reproducing the sound source data until the start of imaging is instructed, it becomes easier to attract the interest of the subject to the digital camera.
Further, in the digital camera according to the present invention, the sound emitting means stores sound source data of animal calls. By emitting animal calls, it is easier to attract animal interest to the digital camera.
[0009]
Furthermore, in the digital camera according to the present invention, the storage means stores sound source data of a sound outside the human audible range and within the audible range of the animal. By emitting sound within the audible range of the animal outside the audible range of the human, the animal can be imaged at an appropriate timing without worrying about other people at the imaging location.
Furthermore, the digital camera according to the present invention further includes a selection unit that selects any one of the plurality of sound source data stored in the storage unit, and the sound emitting unit outputs an imaging preparation signal from the sensor unit. The sound source data selected by the selection means is reproduced and emitted. By selecting sound source data according to the subject, it becomes easier to attract the interest of the subject to the digital camera.
[0010]
The digital camera according to the present invention further includes means for editing sound source data stored in the storage means. Editing the sound source data according to the subject makes it easier to attract the interest of the subject to the digital camera.
In order to achieve the above object, the digital camera according to the present invention outputs a push button and an imaging preparation signal when the push button is pushed to an intermediate position, and outputs an imaging start signal when the push button is pushed completely. An imaging instruction unit having a sensor unit that emits light, a light emitting unit that emits light toward the subject when an imaging preparation signal is output from the sensor unit, and an image of the subject when an imaging start signal is output from the sensor unit. Imaging means for outputting a digital image. When the push button for instructing the start of imaging emits light when it is pushed into the middle position, and the subject is imaged when the push button is fully pushed, the time interval from the start of light emission to imaging is changed. The user can adjust it accordingly. In addition, by adjusting the time interval from the start of light emission to imaging by a continuous operation of increasing the push-button pressing amount, the user can easily perform imaging at an appropriate timing.
[0011]
In order to achieve the above object, a digital camera according to the present invention includes a light emitting means for emitting light toward a subject, a light emission instructing means for instructing the light emitting means to start light emission, and an imaging for instructing the start of imaging. An imaging unit that includes an instruction unit, an optical system, and an image sensor. When imaging start is instructed by the imaging instruction unit, an imaging unit that images a subject and outputs a digital image; And a focus control means for driving the optical system to focus on the subject following the movement of the subject. By focusing on the subject by driving the optical system following the movement of the subject and focusing on the subject during the period from when the user instructs the start of light emission to when the image is taken, the user concentrates on taking the timing to instruct the start of imaging. Therefore, the user can easily take an image at an appropriate timing. Further, by starting driving the optical system after the light emission is started, it is possible to reduce power consumption for driving the optical system following the movement of the subject.
[0012]
Furthermore, in the digital camera according to the present invention, the light emitting means repeatedly emits light until the imaging instruction means instructs to start imaging. By repeatedly emitting light until the start of imaging is instructed, it becomes easy to attract the interest of the subject to the digital camera.
In order to achieve the above object, the film camera according to the present invention includes a storage means for storing sound source data, a push button, and an imaging preparation signal when the push button is pushed to an intermediate position so that the push button is completely An imaging instruction unit having a sensor unit that outputs an imaging start signal when pushed in, and a sound emitting unit that reproduces and emits sound source data stored in the storage unit when an imaging preparation signal is output from the sensor unit And imaging means for imaging a subject when an imaging start signal is output from the sensor unit. The sound is emitted at the timing when the push button for instructing to start imaging is pushed into the intermediate position, and the subject is imaged at the timing when the push button is completely pushed, so that the time interval from the start of sound emission to the imaging is set as the subject. The user can adjust it according to the movement of the camera. Further, by adjusting the time interval from the start of sound emission to imaging by a continuous operation of increasing the push amount of the push button, the user can easily perform imaging at an appropriate timing.
[0013]
In order to achieve the above object, a film camera according to the present invention includes a storage unit that stores sound source data, a sound output unit that reproduces and emits sound source data stored in the storage unit, and a sound output unit. A sound emission instructing means for instructing the start of sound emission, an imaging instruction means for instructing the start of imaging, and an optical system, and when imaging start is instructed by the imaging instruction means, through the optical system Imaging means for exposing the recording medium to incident light, and focus control means for driving the optical system to focus on the subject following the movement of the subject when the sound emission instructing means is instructed to start sound emission; It is characterized by providing. During the period from when the user gives an instruction to start sound emission to when the image is taken, the user follows the movement of the subject and drives the optical system to focus on the subject, so that the user takes the timing to give an instruction to start the imaging. Since it becomes easy to concentrate, the user can easily take an image at an appropriate timing. Further, by starting driving the optical system after the sound emission is started, it is possible to reduce power consumption for driving the optical system following the movement of the subject.
[0014]
To achieve the above object, the film camera according to the present invention outputs a push button and an imaging preparation signal when the push button is pushed to an intermediate position, and outputs an imaging start signal when the push button is pushed completely. An imaging instruction unit having a sensor unit that emits light, a light emitting unit that emits light toward the subject when an imaging preparation signal is output from the sensor unit, and an imaging that images the subject when an imaging start signal is output from the sensor unit And means. When the push button for instructing the start of imaging emits light when it is pushed into the middle position, and the subject is imaged when the push button is fully pushed, the time interval from the start of light emission to imaging is changed. The user can adjust it accordingly. In addition, by adjusting the time interval from the start of light emission to imaging by a continuous operation of increasing the push-button pressing amount, the user can easily perform imaging at an appropriate timing.
[0015]
In order to achieve the above object, a film camera according to the present invention includes a light emitting means for emitting light toward a subject, a light emission instructing means for instructing the light emitting means to start light emission, and an imaging for instructing the start of imaging. An instruction unit, an optical system, and when imaging start is instructed by the imaging instruction unit, imaging unit that exposes a recording medium to light incident through the optical system; And a focus control means for driving the optical system to focus on the subject following the movement of the subject. By focusing on the subject by driving the optical system following the movement of the subject and focusing on the subject during the period from when the user instructs the start of light emission to when the image is taken, the user concentrates on taking the timing to instruct the start of imaging. Therefore, the user can easily take an image at an appropriate timing. Further, by starting driving the optical system after the light emission is started, it is possible to reduce power consumption for driving the optical system following the movement of the subject.
[0016]
The functions of the plurality of means provided in the present invention are realized by hardware resources whose functions are specified by the configuration itself, hardware resources whose functions are specified by a program, or a combination thereof. The functions of the plurality of means are not limited to those realized by hardware resources that are physically independent of each other. The present invention can be specified not only as an apparatus invention but also as a program invention, a recording medium recording the program, and a method invention.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described based on a plurality of examples.
(First Example)
FIG. 2 is a block diagram showing a hardware configuration of the digital still camera 1 as a camera according to the first embodiment of the present invention.
[0018]
The optical system 11 as an imaging unit is configured with a lens, a diaphragm, and the like. The optical system 11 forms an optical image of the subject on the light receiving surface of the image sensor 12.
The image sensor 12 as an image pickup unit is an area image sensor including light receiving cells discretely arranged in a two-dimensional space and charge transfer elements such as a charge coupled device (CCD). The image sensor 12 accumulates charges obtained by photoelectric conversion of the optical image formed by the optical system 11 for each light receiving cell for a predetermined time, and outputs an electric signal corresponding to the amount of light received for each light receiving cell. Provide C (Cyan), M (Magenta), Y (Yellow) and G (Green) complementary color filters, or R (Red), G (Green) and B (Blue) primary color filters on the light receiving surface. Thus, a color image can be formed.
[0019]
The sensor controller 16 as an imaging unit is a drive circuit that outputs drive pulses necessary for driving the image sensor 12 to the image sensor 12. The sensor controller 16 includes, for example, a synchronization signal generator, a driving timing generator, and the like.
An analog front end (AFE) unit 13 as an imaging unit quantizes the electrical signal output from the image sensor 12 and converts it into a digital signal. Specifically, for example, noise reduction processing included in the output electrical signal, level adjustment processing of the electrical signal by adjusting the gain, quantization processing, and the like are performed.
[0020]
A digital image processing unit 14 as an imaging unit performs image formation processing, white balance correction, γ correction, color space conversion, and the like on the digital signal output from the AFE unit 13, and R, G, and B for each pixel. A digital image representing gradation values, Y, Cb, and Cr gradation values is output. The image forming process referred to here means three gradation values of RGB or YCbCr for each pixel by interpolating the luminance information for one color outputted from the light receiving cell with the luminance information of different colors of the neighboring light receiving cells. Is a process for creating a digital image having
[0021]
The compression / expansion unit 15 compresses or expands the digital image. Specifically, the digital image is compressed by performing series conversion and entropy coding of the digital image, and the digital image is expanded by performing inverse conversion thereof. Specifically, the digital image is compressed using, for example, discrete cosine transform, wavelet transform, run length coding, Huffman coding, or the like.
[0022]
The operation unit 24 as selection means includes a dial switch for setting a mode such as an imaging mode and a reproduction mode according to a rotation angle, an operation switch for operating various menus displayed on the LCD 21, and the like.
The shutter button 22 as an imaging instruction means has a push button 22b and a two-stage contact as a sensor unit 22a. When the push button 22b is pushed to the intermediate position, the sensor unit 22a outputs the imaging preparation signal by contacting the first stage contact, and when the push button 22b is completely pushed, the second stage contact comes into contact to start imaging. Output a signal. In the following description, the state where the push button 22b is pushed into the intermediate position is referred to as a half shutter, and the state where the push button 22b is pushed completely is referred to as a full shutter.
[0023]
The LCD 21 is controlled by the display controller 20 and functions as an electronic viewfinder in the imaging mode. The LCD 21 displays various menus for setting the digital still camera 1, selecting sound source data, editing sound source data, and the like.
The display controller 20 includes a frame buffer for storing data for one screen of the LCD 21 and a display circuit for driving the LCD 21 based on the digital image stored in the frame buffer.
[0024]
The sound emitting unit 23 as sound emitting means includes a DSP (Digital Signal Processor) 23a, a D / A converter 23b, an amplifier 23c, and a speaker 23d. The DSP 23a generates an acoustic signal based on the sound source data and outputs it to the D / A converter 23b. The D / A converter 23b converts the acoustic signal into an analog signal. The amplifier 23c amplifies an analog signal as an acoustic signal output from the D / A converter 23b and causes the speaker 23d to generate a sound. The DSP 23a starts reproducing the sound source data when a sound emission command for instructing reproduction of the sound source data is output from the control unit, and continues to reproduce the same sound source data repeatedly until a sound emission end command is output.
[0025]
The control unit includes a CPU 19, a flash memory 17 as a storage unit, and a work memory 18. The CPU 19 controls the entire digital still camera 1 by executing a computer program stored in the flash memory 17. The CPU 19 also functions as a selection unit, a sound emission unit, and an imaging unit by executing a computer program stored in the flash memory 17. The flash memory 17 is a memory for storing a plurality of sound source data in which control information for reproducing various animal calls and various other programs and data are stored. These programs and various data may be downloaded and input from a predetermined server via a network, or may be read and input from a computer-readable storage medium such as a removable memory. The work memory 18 is a memory for temporarily storing programs and data.
[0026]
Next, the sound source data will be described. The sound source data is sound source data of animal calls. In the first embodiment, sound source data of animal calls will be described as an example. However, the sound source data may be, for example, human speech or the sound of a musical instrument. The sound source data may be sound data within the audible range of the animal that is the subject outside the human audible range.
[0027]
FIG. 3 is a graph showing the frequency of various animal calls. The animal may be an animal other than that shown in FIG. 3, for example, a cry of a dog or a cat. The white frame of the graph represents the frequency range that the animal can hear, and the shaded frame represents the frequency range of the animal's cry. As shown in the figure, humans cannot hear sounds of 20 KHz or higher. In contrast, seals, for example, can hear sounds up to 70 KHz. That is, when an animal is a seal, a sound of 20 KHz to 70 KHz is a sound outside the audible range for humans and a sound within the audible range for animals. The sound source data of the first embodiment is described so that, for example, only the sound whose frequency is in the range of 20 KHz or more and 70 KHz or less is reproduced if the sound source data is the sound of seals. Therefore, when the sound source data of a seal cry is reproduced, humans cannot hear the sound, and seals can hear it. The same applies to other animal calls.
[0028]
Next, selection of sound source data and editing of sound source data will be described.
FIG. 4A is a schematic diagram showing a menu screen 31 for selecting sound source data. The digital still camera 1 displays a list of information for uniquely specifying sound source data stored in the flash memory 17, specifically, for example, file names of files storing the sound source data. The user can select sound source data by operating the cross key 24a of the operation unit 24 to move the cursor 32 to the target file name and pressing the button 24b in the moved state.
[0029]
FIG. 4B is a schematic diagram showing an editing screen 33 for editing sound source data. The sound source data editing specifically refers to, for example, adjustment of the reproduction pitch of the sound source data, adjustment of the pitch, adjustment of the volume, and the like. The edit screen 33 is displayed when the button 24c is pressed while the cursor is moved to the target file name on the menu screen 31. The editing screen 33 displays a slider bar for adjusting the playback pitch, a slider bar for adjusting the pitch, and a slider bar for adjusting the volume. The user can adjust each adjustment item by pressing the right end and / or the left end of the cross key 24a with the cursor 34 moved to the target adjustment item. While the edit screen 33 is displayed, the digital still camera 1 repeatedly reproduces the sound source data stored in the file having the file name, and when the adjustment item is adjusted by the user, the adjustment result is reflected and reproduced. . For example, if adjustment is made to increase the playback pitch, playback is performed with a higher playback pitch. When the sound source data can be adjusted while being reproduced in this way, the user can easily make the adjustment. For example, the adjustment can be performed while actually listening to the subject and observing the reaction, and as a result, the subject can be adjusted to a sound that is more responsive. Therefore, the effect of emitting sound source data can be enhanced. After the adjustment, when the user presses the button 24b, the digital still camera 1 stores the editing information indicating the adjustment result in the flash memory 17 in association with the file.
[0030]
Next, the operation of the digital still camera 1 will be described.
FIG. 1 is a flowchart showing an operation flow of the digital still camera 1.
In S100, sound source data is selected. Specifically, the file name selected by the user operating the operation unit 24 is stored in the flash memory 17. As a result, sound source data is selected. In this selection, the user edits the selected sound source data if necessary. Since the file name of the sound source data selected by the user is stored in the flash memory 17, the selection in S100 should be performed only when it is desired to change the sound source data.
[0031]
In S105, the state of the half shutter is detected. Specifically, when the push button 22b is pushed into the intermediate position by the user, the imaging preparation signal output from the sensor unit 22a is detected by the control unit.
When the state of the half shutter is detected, the sound source data is reproduced in S110. More specifically, when the control unit detects the imaging preparation signal, the sound source data stored in the file specified by the file name stored in the flash memory 17 is based on the editing information associated with the file. A sound emission command is output to the DSP 23a so as to reproduce. When the sound emitting command is output, the DSP 23a generates an acoustic signal based on the sound source data and the editing information, and causes the speaker 23d to emit the sound through the D / A converter 23b and the amplifier 23c. Thus, sound is emitted at the timing when the push button 22b for instructing the start of imaging is pushed into the intermediate position. The DSP 23a repeatedly reproduces the same sound source data until a sound emission end command is output from the CPU 19. In the first embodiment, the case where the sound source data is edited in advance has been described as an example. However, the sound source data may be edited at the time of shooting instead of being edited in advance. Specifically, for example, a knob for adjusting the reproduction pitch, a knob for adjusting the volume, and the like may be provided, and when reproducing in S100, the knobs may be adjusted for editing.
[0032]
In S115, the full shutter state is detected. Specifically, when the push button 22b is completely pushed by the user, the imaging start signal output from the sensor unit 22a is detected by the control unit.
When the full shutter state is detected, in S120, the sound emission end signal is output to the DSP 23a, and the reproduction of the sound source data is ended.
[0033]
In S125, the subject is imaged and a digital image is output. Specifically, the control unit controls the sensor controller 16, the AFE unit 13, and the digital image processing unit 14 as soon as the sound emission end command is output in S 120, and the digital image representing the subject based on the output signal of the image sensor 12. Create Thereby, the subject is imaged at the timing when the push button 22b is completely pushed. The created digital image is output to the compression / expansion unit 15, compressed, and stored in the work memory 18.
[0034]
According to the digital still camera 1 according to the first embodiment of the present invention described above, sound is emitted when the push button 22b is pushed into the intermediate position, and the subject is taken when the push button 22b is pushed completely. Imaging is performed. That is, imaging is not performed at a predetermined timing during sound reproduction, but is performed when the push button 22b is completely pushed by the user. For this reason, the user can adjust the time interval from the start of sound emission to imaging by adjusting the timing at which the push button 22b is fully pressed in accordance with the movement of the subject. In addition, according to the digital still camera 1, the time interval from the start of sound emission to imaging is adjusted by a continuous operation of increasing the amount of pressing of the push button 22b. For this reason, the user can easily capture an image at an appropriate timing.
[0035]
Next, the effect of imaging an animal with the digital still camera 1 according to the first embodiment of the present invention will be described.
FIG. 5 is a schematic diagram showing how an animal is imaged as a subject. The animal in the illustrated example is a cat. Further, it is assumed that the sound source data is a recording of a cat cry. When the animal's cry is emitted, the animal is interested in the sound and directs his / her line of sight to the digital still camera 1 as the sound source as shown in the figure. That is, when an animal cry is emitted, the animal's interest is easily attracted to the digital still camera 1. As a result, it becomes easy to image the animal with its line of sight facing the camera. In addition, when the sound source data is repeatedly reproduced, it becomes easier to attract the animal's interest more reliably and for a longer time than when the sound source data is reproduced only once. In addition, if sound within the audible range of the animal is emitted outside the audible range of the human being, the sound that the digital still camera 1 emits cannot be heard by other people who are present at the imaging location, so the user does not have to worry about others. Therefore, the user can wait while reproducing the sound source data as many times as necessary until the appropriate timing comes. Therefore, it is possible to image the animal at an appropriate timing without worrying about others.
[0036]
In the first embodiment, the digital still camera has been described as an example. However, the present invention may be applied to a digital video camera or a mobile phone with a digital camera.
The digital still camera 1 may be provided with a microphone or the like so that the user can record sound used as sound source data. For example, when a human baby is used as a subject, if the sound source data in which the mother calls the baby is reproduced, the digital still camera 1 can easily attract the interest of the baby compared to the sound source data in which the voice of another person is reproduced. . Also, for example, when a dog is a subject, the effect of attracting interest can be enhanced by recording the voice of the dog owner or the voice of a dog that is close to the dog. In this case, it is desirable that sound outside the human audible area can be recorded.
[0037]
(Second embodiment)
The second embodiment is an example of a digital camera that focuses on the subject by driving the optical system following the movement of the subject when the start of sound emission is instructed. In the second embodiment, substantially the same parts as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.
FIG. 6 is a block diagram showing a digital still camera 2 as a digital camera according to the second embodiment.
[0038]
The shutter button 27 as the imaging instruction means has a push button 27b and a sensor unit 27a. When the push button 27b is pressed, the sensor unit 27a outputs an electric signal instructing the start of imaging as an imaging start signal.
Similarly, the sound emission button 26 as the sound emission instruction means has a push button 26b and a sensor unit 26a. When the push button 26b is pushed, the sensor unit 26a outputs an electric signal instructing the start of sound emission as a sound emission start signal to the control unit.
[0039]
The focus control unit 25 as the focus control means includes a stepping motor that moves the lens 11a, a motor drive circuit that drives the stepping motor, and the like.
The control unit includes a CPU 19, a flash memory 17, and a work memory 18. The CPU 19 also functions as a focus control unit by executing a computer program stored in the flash memory 17.
[0040]
Next, focus control will be described. Specifically, the control unit and the focus control unit 25 perform focus control by, for example, a known contrast AF method that moves the lens 11a while evaluating the approximate value (AF evaluation value) of the contrast of the entire digital image. When the sound emission start signal is output, the control unit repeatedly performs focus control at predetermined time intervals until the imaging start signal is output. When focus control is repeatedly performed, even if the subject moves after focusing, the AF evaluation value is evaluated again after a predetermined time has elapsed and the lens 11a is moved again to keep the subject in focus. During this time, since the lens 11a moves in accordance with the movement of the subject, the control unit and the focus control unit 25 drive the optical system 11 following the movement of the subject.
[0041]
Next, the operation of the digital still camera 2 will be described.
FIG. 7 is a flowchart showing a flow of operations of the digital still camera 2.
In S205, an instruction to start sound emission is detected. Specifically, when the push button 26b is pressed by the user, the control unit detects a sound emission start signal instructing the sound emission start that is output when the sensor unit 26a comes into contact.
[0042]
In S210, the sound source data stored in the flash memory 17 is reproduced. Specifically, when detecting the sound emission start signal, the control unit outputs a sound emission command to the DSP 23a so as to reproduce sound source data selected in advance by the user. When the sound emitting command is output, the DSP 23a generates an acoustic signal based on the sound source data and causes the speaker 23d to emit the sound.
[0043]
In S215, the optical system 11 is driven following the movement of the subject, and the subject is imaged on the light receiving surface of the image sensor 12. Specifically, when the sound emission start signal is output, the control unit repeatedly performs focus control at predetermined time intervals.
In S220, an instruction to start imaging is detected. Specifically, when the push button 27b is pressed by the user, the control unit detects an imaging start signal output from the sensor unit 27a.
[0044]
In S225, the sound emission is terminated. Specifically, the sound emission end signal is output to the DSP 23a to finish the reproduction of the sound source data.
In S230, the tracking of the movement of the subject is ended.
In S235, the subject is imaged and a digital image is output.
According to the digital still camera 2 according to the second embodiment of the present invention described above, the subject is in the period from when the sound emission start signal is output from the sound output button 26 to when the image pickup start signal is output from the shutter button 27. The optical system 11 is driven following the movement of the object to focus on the subject. For this reason, it is not necessary for the user himself to adjust the focus by manual operation. Therefore, the user can easily concentrate on taking the timing for instructing the start of imaging. Therefore, the user can easily take an image at an appropriate timing. Further, according to the digital still camera 2, the driving of the optical system 11 is started after sound emission is started. In other words, the optical system 11 is not driven following the movement of the subject before sound emission is started. Therefore, the power consumption can be reduced compared to the case where the optical system 11 is driven following the movement of the subject before sound emission is started.
[0045]
In the second embodiment, the case where the sound release button 26 and the shutter button 27 are provided separately has been described as an example. However, when the sound release button 26 and the shutter button 27 are separately provided, a sound emission start signal is output. The shutter button 27 may be configured to output a sound emission end signal, and the shutter button 27 may also serve as the sound emission button 26.
[0046]
(Third embodiment)
The third embodiment is an example of a digital camera provided with light emitting means for emitting light toward a subject. The digital camera of the third embodiment attracts the subject's interest to the digital camera by emitting light, thereby facilitating imaging with the subject's line of sight facing the camera. In the third embodiment, substantially the same parts as those in the first and second embodiments are denoted by the same reference numerals and description thereof is omitted.
[0047]
FIG. 8 is a block diagram showing a digital still camera 3 as a digital camera according to the third embodiment.
The light emitting unit 28 serving as a light emitting unit includes a light source 28b such as an LED, a light emission control circuit 28a that controls lighting of the light source 28b, and the like. The light emitting unit 28 here is not used as a so-called strobe, but is used for the purpose of attracting the interest of the subject to the digital still camera 3.
[0048]
The CPU 19 also functions as a light emitting unit by executing a computer program stored in the flash memory 17 and controls the light emitting unit 28 based on a light emission pattern to be described later. The flash memory 17 of the third embodiment stores a plurality of light emission patterns.
The light emission pattern defines how the light source 28b emits light. Specifically, for example, “2 seconds on, 1 seconds off” or “0.5 seconds on, 0.1 seconds off, 0.4 seconds on, 0.1 seconds off, 0.2 seconds on, 0.1 seconds It is information that defines the time to turn on or turn off the light source 28b, such as "off, ...".
[0049]
As for the light emission pattern, the user can select any one in the same manner as in the case of the sound source data, and can also edit the selected light emission pattern. Specifically, the editing of the light emission pattern corresponds to, for example, adjusting the light emission time or the light emission time. Thereby, the user can edit the light emission pattern in which the subject is more interested, and the effect of light emission can be enhanced.
[0050]
Since the operation of the digital still camera 3 is substantially the same as that of the first embodiment except that the selected sound source data is emitted instead of reproducing the selected sound source data, detailed description thereof is omitted. To do.
According to the digital still camera 3 according to the third embodiment of the present invention described above, light is emitted when the push button for instructing to start imaging is pushed into the intermediate position, and at the timing when the push button is completely pushed. By imaging the subject, the user can adjust the time interval from the start of light emission to imaging in accordance with the movement of the subject.
[0051]
(Fourth embodiment)
The fourth embodiment is an example of a digital camera that focuses on a subject by driving the optical system following the movement of the subject when the start of light emission is instructed. In the fourth embodiment, substantially the same parts as those in the first, second, and third embodiments are denoted by the same reference numerals and description thereof is omitted.
[0052]
FIG. 9 is a block diagram showing a digital still camera 4 as a digital camera according to the fourth embodiment.
The light emission button 29 as the light emission instruction means includes a push button 29b and a sensor unit 29a. When the push button 29b is pushed, the sensor unit 29a outputs an electric signal instructing the start of light emission to the control unit as a light emission start signal.
[0053]
Since the operation of the digital still camera 4 is substantially the same as that of the second embodiment except that the light source 28b is emitted based on the light emission pattern instead of reproducing the sound source data, detailed description thereof is omitted.
According to the digital still camera 4 according to the fourth embodiment of the present invention described above, the optical system is driven to follow the movement of the subject to follow the movement of the subject during the period from when the user gives an instruction to start light emission until imaging. By focusing, it becomes easier for the user to concentrate on taking the timing for instructing the start of imaging, so that the user can easily perform imaging at an appropriate timing. In addition, the power consumption can be reduced compared to the case where the optical system is driven following the movement of the subject before the light emission is started.
[0054]
(Fifth embodiment)
The fifth embodiment is an example of a film camera that reproduces sound source data and emits sound when the push button is pushed to an intermediate position, and images a subject when the push button is pushed completely. In the fifth embodiment, substantially the same parts as those in the first embodiment, the second embodiment, the third embodiment, and the fourth embodiment are denoted by the same reference numerals and the description thereof is omitted.
[0055]
FIG. 10 is a block diagram showing a film camera 5 according to the fifth embodiment.
A shutter control unit 40 as an imaging unit is controlled by the control unit, and opens and closes a shutter 41 as an imaging unit.
When the image pickup start signal is output when the push button 22b is completely pushed, the control unit controls the shutter control unit 40 to open and close the shutter 41, and photographic film or the like is incident on the light incident through the optical system 11. The recording medium 42 is exposed to light.
[0056]
The operation of the film camera 5 is substantially the same as that of the first embodiment except that the recording medium 42 is exposed instead of imaging a subject and outputting a digital image when an imaging start signal is output. Therefore, detailed description is omitted.
According to the film camera 5 according to the fifth embodiment of the present invention described above, sound is emitted at the timing when the push button 22b for instructing to start imaging is pushed into the intermediate position, and the push button 22b is pushed completely. By imaging the subject at the timing, the user can adjust the time interval from the start of sound emission to imaging in accordance with the movement of the subject. Further, by adjusting the time interval from the start of sound emission to imaging by a continuous operation of increasing the pressing amount of the push button 22b, the user can easily perform imaging at an appropriate timing.
[0057]
(Sixth embodiment)
The sixth embodiment is an example of a film camera that focuses on a subject by driving the optical system following the movement of the subject when the start of sound emission is instructed. In the sixth embodiment, parts substantially the same as those in the first embodiment, the second embodiment, the third embodiment, the fourth embodiment, and the fifth embodiment are denoted by the same reference numerals and described. Omitted.
[0058]
FIG. 11 is a block diagram showing a film camera 6 according to the sixth embodiment.
The operation of the film camera 6 is substantially the same as that of the second embodiment except that the recording medium 42 is exposed instead of imaging a subject and outputting a digital image when an imaging start signal is output. Therefore, detailed description is omitted.
According to the film camera 6 according to the sixth embodiment of the present invention described above, the optical system 11 is driven following the movement of the subject to follow the movement of the subject during the period from when the user gives an instruction to start sound emission until imaging. By focusing on the user, it becomes easier for the user to concentrate on taking the timing to instruct the start of imaging, so that the user can easily take an image at an appropriate timing. In addition, by starting driving the optical system 11 after the sound emission is started, it is possible to reduce power consumption for driving the optical system 11 following the movement of the subject.
[0059]
(Seventh embodiment)
The seventh embodiment is an example of a film camera provided with light emitting means for emitting light toward a subject. In the seventh embodiment, substantially the same parts as those in the first embodiment, the second embodiment, the third embodiment, the fourth embodiment, the fifth embodiment and the sixth embodiment are denoted by the same reference numerals. Therefore, the description is omitted.
[0060]
FIG. 12 is a block diagram showing a film camera 7 according to the seventh embodiment.
The operation of the film camera 7 is substantially the same as that of the third embodiment except that the recording medium 42 is exposed instead of imaging a subject and outputting a digital image when an imaging start signal is output. Therefore, detailed description is omitted.
According to the film camera 7 according to the seventh embodiment of the present invention described above, the light is emitted when the push button 22b for instructing the start of imaging is pushed into the intermediate position, and the timing when the push button 22b is pushed completely. By imaging the subject, the user can adjust the time interval from the start of light emission to imaging in accordance with the movement of the subject. Further, by adjusting the time interval from the start of light emission to imaging by a continuous operation of increasing the push amount of the push button 22b, the user can easily perform imaging at an appropriate timing.
[0061]
(Eighth Example)
The eighth embodiment is an example of a film camera that focuses on a subject by driving the optical system following the movement of the subject when the start of light emission is instructed. The eighth embodiment is substantially the same as the first embodiment, the second embodiment, the third embodiment, the fourth embodiment, the fifth embodiment, the sixth embodiment, and the seventh embodiment. Are denoted by the same reference numerals and description thereof is omitted.
[0062]
FIG. 13 is a block diagram showing a film camera 8 according to the eighth embodiment.
The operation of the film camera 8 is substantially the same as that of the fourth embodiment except that the recording medium 42 is exposed instead of imaging a subject and outputting a digital image when an imaging start signal is output. Therefore, detailed description is omitted.
According to the film camera 8 according to the eighth embodiment of the present invention described above, the optical system 11 is driven to follow the movement of the subject to follow the movement of the subject during the period from the start of light emission by the user until the image is taken. By focusing, it becomes easier for the user to concentrate on taking the timing for instructing the start of imaging, so that the user can easily perform imaging at an appropriate timing. In addition, by starting driving the optical system 11 after the light emission is started, it is possible to reduce power consumption for driving the optical system 11 following the movement of the subject.
[Brief description of the drawings]
FIG. 1 is a flowchart according to a first embodiment of the present invention.
FIG. 2 is a block diagram according to a first embodiment of the present invention.
FIG. 3 is a graph showing the frequency of various animal calls.
4A and 4B are schematic views showing screens according to the first embodiment of the present invention. FIG.
FIG. 5 is a schematic diagram showing subject imaging according to the first embodiment of the present invention.
FIG. 6 is a block diagram according to a second embodiment of the present invention.
FIG. 7 is a flowchart according to a second embodiment of the present invention.
FIG. 8 is a block diagram according to a third embodiment of the present invention.
FIG. 9 is a block diagram according to a fourth embodiment of the present invention.
FIG. 10 is a block diagram according to a fifth embodiment of the present invention.
FIG. 11 is a block diagram according to a sixth embodiment of the present invention.
FIG. 12 is a block diagram according to a seventh embodiment of the present invention.
FIG. 13 is a block diagram according to an eighth embodiment of the present invention.
[Explanation of symbols]
1 digital still camera (digital camera), 2 digital still camera (digital camera), 3 digital still camera (digital camera), 4 digital still camera (digital camera), 5 film camera, 6 film camera, 7 film camera, 8 film Camera, 11 Optical system (imaging means), 12 Image sensor (imaging means), 13 AFE section (imaging means), 14 Digital image processing section (imaging means), 16 Sensor controller (imaging means), 17 Flash memory (storage means) , Sound emitting means, imaging means, focus control means), 18 work memory (sound emitting means, imaging means, focus control means), 19 CPU (sound emitting means, imaging means, focus control means), 20 display controller, 22 shutter Button (imaging instruction means), 23 release Sound part (sound emission means), 25 Focus control part (focus control means), 26 Sound release button (sound emission instruction means), 27 Shutter button (imaging instruction means), 28 Light emission part (light emission means), 29 Light emission button ( Light emission instruction means), 40 shutter control unit (imaging means), 41 shutter (imaging means), 42 recording medium

Claims (14)

Storage means for storing sound source data;
An imaging instruction means comprising: a push button; and a sensor unit that outputs an imaging preparation signal when the push button is pushed into an intermediate position and outputs an imaging start signal when the push button is completely pushed;
Sound output means for reproducing and emitting sound source data stored in the storage means when an imaging preparation signal is output from the sensor unit;
Imaging means for imaging a subject and outputting a digital image when an imaging start signal is output from the sensor unit;
A digital camera comprising: Storage means for storing sound source data;
Sound emission means for reproducing and emitting sound source data stored in the storage means;
A sound emission instruction means for instructing the sound emission means to start sound emission;
An imaging instruction means for instructing the start of imaging;
An imaging unit having an optical system and an image sensor, and imaging a subject and outputting a digital image when imaging start is instructed by the imaging instruction unit;
A focus control means for driving the optical system to focus on the subject following the movement of the subject when the sound emission instructing means is instructed to start sound emission;
A digital camera comprising: 3. The digital camera according to claim 1, wherein the sound emitting unit repeatedly reproduces sound source data until the start of imaging is instructed by the imaging instruction unit. 4. The digital camera according to claim 1, wherein the sound emitting means stores sound source data of animal calls. 4. The digital camera according to claim 1, 2 or 3, wherein the storage means stores sound source data of sounds outside the human audible range and within the audible range of the animal. A selection means for selecting any of the plurality of sound source data stored in the storage means;
The sound emission means reproduces and emits sound source data selected by the selection means when an imaging preparation signal is output from the sensor unit. Digital camera. The digital camera according to any one of claims 1 to 6, further comprising means for editing sound source data stored in the storage means. An imaging instruction means comprising: a push button; and a sensor unit that outputs an imaging preparation signal when the push button is pushed into an intermediate position and outputs an imaging start signal when the push button is completely pushed;
A light emitting means for emitting light toward a subject when an imaging preparation signal is output from the sensor unit;
Imaging means for imaging a subject and outputting a digital image when an imaging start signal is output from the sensor unit;
A digital camera comprising: Light emitting means for emitting light toward the subject;
A light emission instruction means for instructing the light emission means to start light emission;
An imaging instruction means for instructing the start of imaging;
An imaging unit having an optical system and an image sensor, and imaging a subject and outputting a digital image when imaging start is instructed by the imaging instruction unit;
A focus control means for driving the optical system to focus on the subject following the movement of the subject when the light emission instructing means is instructed to start light emission;
A digital camera comprising: 10. The digital camera according to claim 8, wherein the light emitting unit emits light repeatedly until the start of imaging is instructed by the imaging instruction unit. Storage means for storing sound source data;
An imaging instruction means comprising: a push button; and a sensor unit that outputs an imaging preparation signal when the push button is pushed into an intermediate position and outputs an imaging start signal when the push button is completely pushed;
Sound output means for reproducing and emitting sound source data stored in the storage means when an imaging preparation signal is output from the sensor unit;
A film camera comprising: an imaging unit configured to image a subject when an imaging start signal is output from the sensor unit. Storage means for storing sound source data;
Sound emission means for reproducing and emitting sound source data stored in the storage means;
A sound emission instruction means for instructing the sound emission means to start sound emission;
An imaging instruction means for instructing the start of imaging;
An imaging unit that has an optical system and sensitizes a recording medium to light incident through the optical system when imaging start is instructed by the imaging instruction unit;
A focus control means for driving the optical system to focus on the subject following the movement of the subject when the sound emission instructing means is instructed to start sound emission;
A film camera comprising: An imaging instruction means comprising: a push button; and a sensor unit that outputs an imaging preparation signal when the push button is pushed into an intermediate position and outputs an imaging start signal when the push button is completely pushed;
A light emitting means for emitting light toward a subject when an imaging preparation signal is output from the sensor unit;
A film camera comprising: an imaging unit configured to image a subject when an imaging start signal is output from the sensor unit. Light emitting means for emitting light toward the subject;
A light emission instruction means for instructing the light emission means to start light emission;
An imaging instruction means for instructing the start of imaging;
An imaging unit that has an optical system and sensitizes a recording medium to light incident through the optical system when imaging start is instructed by the imaging instruction unit;
A focus control means for driving the optical system to focus on the subject following the movement of the subject when the light emission instructing means is instructed to start light emission;
A film camera comprising:

Images