JPS60205432A - Voice input camera - Google Patents

Abstract

PURPOSE:To save power consumption and to prevent malfunction by performing manual release operation and voice input selectively and providing a time specifying device which powers on a speech recognizing device for a specific time only when a voice photography start signal is selected. CONSTITUTION:Interlocking switches 11 and 17 for selecting voice release and manual release selectively are placed at 11-1 and 27-1 during speech release selection. A time specifying circuit 6 powers on the speech recognizing device for the specific time. The speech recognizing device 1 converts an input speech signal into an electric signal through a microphone 1-1 and the signal is amplified by an amplifier 1-2, processed preliminarily by a filter 1-3 for noise removal, and supplied to an analyzing and sampling part 1-4 to extract the feature pattern of the input voice. Then, the feature pattern of standard voice stored in memory 1-5 previously is inputted to a comparative collating part 1-6 to calculate the similarity between both feature patterns, and an output device 1-7 outputs latch signals (h) and (i) corresponding to the input voice to outputs Q1 and Q2 when the calculated similarity is within a standard range.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention allows selection between starting camera shooting operation by manual release operation and starting camera shooting operation by voice input.
The present invention relates to a voice input camera that is capable of inputting audio signals.

Traditionally, a camera starts shooting using a mechanical release, which involves pressing the release button with your finger.
The operating force when pressing the release button with a finger tends to cause so-called camera shake, and especially when the exposure time is long, camera shake tends to become large. Furthermore, in cases where only one hand can be used, for example, when one hand is occupied with luggage, or in the case of a person who can only use one hand, it is very difficult to fix the camera and operate the release with only one hand.

To eliminate these drawbacks, it is conceivable that when the photographer utters a voice, the camera will start recording by recognizing this with the voice #& device. To improve usability, it is desirable to configure the camera so that shooting can be started either by manual release operation or by voice.

However, with such a configuration, there are problems of power consumption of the speech recognition device and malfunction due to careless speech.

The present invention enables the photographing operation to be performed selectively by either manual release operation or human voice input, and is improved in terms of saving power consumption and preventing malfunctions as described above.
The purpose is to provide a voice camera.

The audio input camera of the present invention includes a circuit that executes a photographing operation upon input of a photographing start signal, and a manual photographing start signal circuit that inputs a photographing start signal to the photographing operation execution circuit based on a manual release operation. a voice recognition device that recognizes vocal human power and produces an output only while energized; a voice photography start signal circuit that inputs a photography start signal to the photography operation execution circuit based on the output of the voice recognition device; A circuit selection switching means for selecting either the manual photography start signal circuit or the audio photography start signal circuit, and a timing device that energizes the voice recognition device for a predetermined period of time only when the audio photography start signal circuit is selected. It is characterized by:

Figure 8A1 shows a circuit according to an embodiment of the present invention. 1 is voice I
Ig! The I# device identifies and judges the input voice and outputs the resulting electrical signal (this will be further explained using FIG. 2). 5 is switch 1 described later
1 and 27, which is closed when the audio release is selected and opened when the manual release is selected. Reference numeral 6 denotes a time-limited circuit, which energizes the voice recognition device for a certain period of time. 7 is the power switch, 8Fi power supply iir, a.

Reference numerals 11 and 27 are interlocking switches for selecting audio release and manual release, and when audio release is selected, 11-1.
27-IK position, and 1 when manual release is selected.
1-2, 27-2.

13 is a switch that is first closed by pressing down a release button (not shown) during manual release.

Reference numeral 17 denotes a circuit for determining sales item settings for photographing with the camera, and is hereinafter referred to as the first camera circuit. This first camera circuit 17 includes a well-known photometry circuit, a distance measurement circuit, and so-called B and C circuits that check the power supply level before photographing.

It is a combination of circuits, and is a collection of these circuits that operate when the switch 13 is turned on.
, d respectively show B, C (battery check), low rainbow, distance display, and output 1 is pue.

Reference numeral 29 denotes a switch that is closed by pressing down the release button (not shown) after the switch 13 is closed by pressing down the release button (not shown) during manual release, and then by pressing the release button further down.

33 is a circuit that performs photographing based on the output result of the first camera circuit 17, for example, automatic exposure.

In an autofocus camera, there is a circuit that drives the photographic lens to perform focusing based on the output result of the first camera circuit 17, and then automatically performs proper exposure, and is hereinafter referred to as a second camera circuit. This second camera circuit 33 is a well-known circuit, and is configured so that its output is inverted when the shutter is no longer energized.

34 is a latch circuit, and 35 is an automatic return type switch that resets the timer circuit 6. 2,4,9゜12.1
4,15,25,28.30 are transistors, 3,10
, 26, 31. 32 is the resistance, 16° 18. 19. 20 is the buffer gate, 24 is the four-person circuit), 21.2
2.23 is a light emitting diode.

Regarding the connection relationship, the power supply battery 8 is connected to the emitter IC of the transistor 2 via the power switch 7, and is also connected to the emitter of the transistor 9. The transistor 20 is connected to the collector of a transistor 4 through a resistor 3, and the emitter and rear end of the transistor 4 are grounded. The emitter of the transistor 2 is connected to a time constant circuit 6 via a switch 5. The output f of the time setting circuit 6 is connected to the pace of the transistor 4, and the reset input of the time setting circuit 6 is grounded via a switch 35. The collector of the transistor 2 is connected to the power supply terminal of the voice recognition device fill to bias the voice recognition device 1. The output Q1 of the speech recognition device 1 is connected to the pace of the tra/nostar 12, and the emitter of the transistor 12 is grounded.

The base of transistor 90 is connected to switch 1 through resistor 10.
Connected to 1. A contact 11-1 of the switch 11 is connected to the collector of the transistor 12. Further, the contact 11-2 of the switch 11 is grounded through the switch 13t-, and is also connected to the collector of the transistor 14, and the emitter of the transistor 14 is grounded. The pace of the transistor 14 is the same as that of the transistor 15.
is connected to the collector of transistor 30 and to the pace of transistor 30. The emitter of transistor 15 is grounded.

The collector of the transistor 9 is connected to the power supply terminal of the first camera circuit 17 to bias the camera circuit 17, and also connects the anode of the light emitting diode 21, 22, 23, the emitter of the transistor 25, and the latch circuit 34. It is connected to the power supply terminal and biases the latch circuit 34.

The output a of the first camera circuit 17 is connected to the reset power R of the circuit 34 as described above, and the output is input to the AND f-) 24, and is also connected to the cathode of the light emitting diode 23 via the buffer gate 20. and the output C is input to ANDGOO) 24 and 1 buffer f-) 19t-
The output d is input to ANDf-) 24 and is also connected to the cathode of the light emitting diode 21 via the buffer gate 18.

The output Q2 of the speech recognition device 1 is input to the AND gate 24, and the output of the AND gate 24 is input to the transistor 2.
8, and the emitter and terminal of the transistor 28 are grounded.

The pace of the transistor 25 is connected to a switch 27 via a resistor 26, and the contact 27-1 of the switch 27 is connected to the collector of a transistor 28. On the other hand, the contact 27-2 of the switch 27 is grounded via the switch 29t-, and is also connected to the collector of the transistor 30. The emitter of the transistor 30 is grounded. The collector of transistor 25 is grounded through resistors 31 and 32, and the connection point between resistors 31 and 32 is connected to transistor 3.
0, and the collector of the transistor 25 is further connected to the power supply terminal of the second camera circuit 33, and the collector of the transistor 25 is connected to the power supply terminal of the second camera circuit 33.
Bias the camera circuit 33.

The output e of the second camera circuit 33 is a photographing completion signal of the camera, and the output e is sent to the latch circuit 340 manually set S.
:Continued. The output Q of the latch circuit 34 is connected to the pace of the transistor 15 via the buffer gate 16 and also to the reset terminal R of the voice recognition device 1.

FIG. 2(,) is a functional block diagram of the speech recognition device 1 shown in FIG. 1-1 is a microphone, 1-2 is an amplifier, 1-3 is a filter, 1-4 is an analysis/t'λ standardization section, 1-5 is a memory, 1-6 is a comparison/verification section, and 1-7 is an output. (The circuit configuration thereof is shown in FIG. 2(b)K). g
is an input audio signal and is received by microphone 1-1. A small input audio signal t- to the microphone 1-1 is converted into an electrical signal, the electrical signal is amplified by the amplifier 1-2, and the amplified electrical signal of the input audio is subjected to noise removal etc. by the filter 1-3. Preprocessing is performed, and the electrical signal of the preprocessed input voice is given to the analysis/sampling unit 1-4, where the characteristic pattern of the input voice is extracted, and the characteristic pattern of the extracted input voice is and the standard speech feature f-turn stored in advance in the memory 1-5 are input to the comparison and collation unit 1-6, and the similarity between the two features and g-turns is calculated, and the similarity within a certain standard is calculated. If so, it is assumed that the input voice and the standard voice in memory 1-5 match, and the matching signal is sent to the output device [1-5].
1m is input, and the output device 1-7 receives a latch signal corresponding to the input voice and outputs i as an output Q1 r Qt K in FIG.

The output device 1-7 is reset by the signal j from the output Q of the latch circuit 34 when the camera's photographing completion signal is generated.

If you follow the above, you will hear a specific first sound (e.g. "photometry").
If a memo IJ 1-5K is added in advance, when the same first i voice is input from the microphone 1-1, it will be analyzed by the microphone 1-4 and recorded as a digital i or an analog voice. If it matches the voice registered in 1-5 and registered in 1-5, the output stirrup 1 will be output from 1-6.
-7 was appointed, and it was to make it (J+kHL),
Human power is applied to the child circuit.

If you register a specific second sweat voice (a voice called "release" if you keep it) in memory 1-5, then when the same second sweat voice comes in from the microphone, the same VC analysis and comparison will be performed. In order to set Qs to I, it can be input to the child circuit.

The output Qt of the latch circuit 103 becomes HL.

When the output of NAND DART 102 becomes HLK and the input of NAND DATE 1()1 becomes HLK, NAND DART 104
．． 105, the output Q2 of the child circuit is IIL,!
: & Le. When there is a j input, the output 11 of the inverter 106 becomes LL, the latch circuit is reset, and the Ql
, Ql output becomes LL.

FIG. 3 is a time chart of the operation of the circuit of this embodiment when manual release is selected, and FIG. 4 is a time chart of the operation of the circuit of this embodiment when audio release is selected.

Below, a case where manual release is selected and a case where audio release is selected will be explained, and these descriptions should be read with reference to FIGS. 3 and 4, respectively.

First, a case where manual release 1i is selected will be described. In this case, the switches 11 and 27 each have a contact point 11-
2. Located at 27-2 and switch 5 FiOFF
Therefore, the time constant circuit 6 does not operate, and therefore the transistors 2 and 4 and the voice recognition fi device 1 also do not operate.

When you press down the release button (not shown), the switch 13
is ON L, the transistor 9 is turned ON and the first camera circuit 17 is biased. Then, the first camera circuit 17 starts operating and outputs a high level (hereinafter referred to as HL).
A signal (hereinafter referred to as LL) is generated, enters the reset input R of the latch circuit 34, and is set to the output Qtc+- level (hereinafter referred to as LL) of the latch circuit. If the power supply voltage does not interfere with camera photography, the output of the first camera circuit 17 becomes I after the output 1 is generated, and the instantaneous light emitting diode 23 turns on and then goes out. However, if the power supply voltage does not interfere with camera photography. In this case, the output remains at LL, and if the light emitting diode 23 is left on, it is possible to know that there is an abnormality in the power supply voltage.

If the brightness of the subject to be photographed is appropriate and there is no problem with the camera's exposure, the output C will be 'HL' after output 1 is generated. If it is too high, the output C should be the same as LL. In this case, the light emitting diode 22 remains lit, indicating that the subject's brightness is inappropriate and that appropriate exposure cannot be obtained. The output d is the condition setting judgment output for camera photography equivalent to output c. If there is no problem with camera photography, the output d becomes HL after the output color is generated, - the instantaneous light emitting diode 21 turns on and then turns off. However, if there is a problem with camera photography, the output d will go up to LL (1), the light emitting diode 21 will remain lit, and it will be possible to know that there is a problem with camera photography. This output d is, for example, an electrical signal output from a camera with an automatic focusing mechanism that measures the distance to the object.

In this way, press the release button and press the release button.
Notify the camera operator whether the shooting conditions for the camera are in place. If all of these things are in place, the conditions for the camera to start shooting are in place.

Next, when the release button is pushed further and the switch 29 is turned on, the transistor 25 is turned on and the resistor 31.32 is turned on.
The voltage across the resistor 32 created by the voltage divider circuit biases between the pace and emitter of the transistor 30, turning on the transistor 3o.The transistor 30 turns on.
Then, even if the switch 29 is turned off, the transistor 25
Continue to hold the tiON-like M. Also, like the transistor 3°, the transistor 14 is not ON, and the switch 13 is OFF.
Even if it is turned off, the transistor 9 continues to be in the ON state.

When the transistor 25 is turned on and the second camera circuit 33 is biased, the driving of the photographing lens is started based on the 6111 distance signal from the first camera circuit 17, and the photographing lens stops at the point where the focus matches. After the alignment is completed, the shutter curtain opens, and when the proper exposure is reached, the shutter curtain closes and the photographing is completed. The output e of the second camera circuit 33 is No. 12 when the camera has completed the shooting (that is, the exposure has been completed), and when the shooting is completed, the output e becomes IIL, and this L is the latch circuit 34.
0 set manually S is entered, and the output Q of the latch circuit 34 is LL
When the HLK switches, the transistor 15 is turned on via the buffer 16. transistor 15
When turned on, the transistors 14 and 30 are turned off, and the transistors 9 and 25 are also turned off.The first camera circuit 17, i (iUi of the two-power camera circuit 33, etc.) is prevented, and the camera operation ii ends.

Next, the operation when +f voice release is selected will be explained. In this case, switches 11 and 27 are turned off, and contacts 11-1 and 27-I are turned off. In conjunction with this, the switch 5 V, t turns from OFF to ON, the time constant circuit 6 starts operating, and its output f changes from switch to switch 5.
The HL signal is output for a certain period of time from the time when the transistor 4 is turned ON, and accordingly the transistor 2 is turned OFF.
N to bias the voice recognition device ftl at approximately the heart source voltage and start its operation.

When the first voice input is given to the voice recognition device IK, the voice recognition device 1 recognizes this voice, and the output Q1 of the voice recognition device 1 changes from LL to pHL, turning on the transistor 12, and accordingly turning on the transistor 9. The first camera circuit 17, latch circuit 34, etc. start the same operation as in the case of manual release.

When the outputs of the first camera circuit 17, e, and d all become Hl (that is, the camera shooting start condition is satisfied),
The AND gate 24 enters a standby state.

Next, when the voice input of the voice recognition device IKm2 is given, the voice recognition device 1 recognizes this voice and the output Q2 of the voice recognition device 1 changes from LL to HL, and the and dart 24 opens.
Transistor 28 turns on, transistor 25 turns on and biases the second camera circuit 33.
The camera circuit 33 starts the same operation as in the case of manual release.

When the photographing operation of the camera is completed and the photographing completion signal e is generated from the second camera circuit 33, the signal of the output Q of the circuit 34 becomes LL, HL, and so on. , the outputs Q+ and Q of the speech recognition device 1 are added.
z and the outputs Ql and Q! is HL, I, L
becomes. When the voice recognition device 1 (DIIJ force Q+, Q! becomes LL, the transistor 12 is turned off and the AND/DART 24 is closed, the transistor 28 is also turned off, and accordingly, the transistors 9 and 25 are also turned off. Power supply to the camera circuit 17, second camera circuit 33, etc. is blocked, and photographing by the camera is completed.

If any one of the outputs b r e r d of the first camera circuit 17 remains LL (that is, the shooting start condition of the camera is not satisfied), the and dart 2
4 does not open even when the second audio input is applied, and therefore the camera does not take a picture, thus making it possible to prevent a failure in taking a picture. At this time, in order to be able to take pictures, after confirming the cause of the failure by checking the display of the light emitting diode 21.22°23,
After turning off the power switch and eliminating the cause of the defect, turn on the power switch, turn all the lights back on, and restart shooting for a moment.

If the first voice input or the second voice input is not received during the operation period of the timing circuit 6 (that is, at least one of the outputs Ql and Q2 of the voice recognition device 1 is L).
(remains L) When the operating period of the time constant circuit 6 has elapsed,
Transistors 2 and 4 become OFF'F, and the voice recognition device 1
0 energization is blocked and the output Q Ir Q ! becomes LL, transistor】2FiOFF L, AND gate 2
4 is closed, transistor 28 is turned off, and transistors 9 and 25 are also turned off. In this case, to start shooting, turn on the switch 35 again and turn on the timer circuit 6.
The manual reset is set to K t LL, and the time constant circuit 6 is activated.

The subsequent operations are the same, so they will be omitted.

In addition, after the completion of shooting with the voice release, if the time setting circuit 6 is in operation when taking the next shot, the shooting operation can be performed as described above. 6 has already finished its operation, the switch 35 must be turned on again. The subsequent operations are clear from the above description and will therefore be omitted.

In this way, it is possible to eliminate unnecessary 1d power consumption by controlling the power supply to the single voice recognition device 1 by -1 with the timer circuit 6, and to prevent malfunctions caused by inadvertently entering voices. .

As explained above, according to the present invention, the audio release means and the manual release means can be arbitrarily selected as the release means for camera photography according to the requirements of the camera photography situation. For example, when the voice release means is selected, For example, it is possible to prevent camera shake and inconvenience caused by camera shake Ll and one-handed photography, which occur in the case of manual release operation. In addition, when the voice release method is selected, the voice recognition device operates for only one moment due to the timing means, so even if you forget to turn off the power switch twice, the unexpected voice that enters the voice recognition device may cause you to start shooting by mistake. It is possible to prevent this and eliminate unnecessary consumption power.
l,'m Pond energy can be used effectively.

[Brief explanation of the drawing]

Figure 1 is a circuit diagram of an embodiment of the present invention, and Figure 2 (a).
is audio 1lii! ! FIG. 3 is a time chart for manual release, and FIG. 4 is a time chart for a manual release. 1... Voice recognition device, 6... Timing device, 11.27
...Manual-audio changeover switch, 17...First camera circuit, 24...And gate, 33...Second camera circuit,
34...Latch circuit.

Claims (1)

[Claims] A circuit that executes a photographing operation when a photographing start signal is input, and a hand DLJI photographing start signal circuit that inputs a photographing start signal to the photographing operation execution circuit based on a manual release operation are energized. A voice that recognizes voice input and produces an output only while it is -, i1! an audio recording start signal circuit that inputs a photographing start signal to the photographing operation execution circuit based on the output of the M sound PMgI &device; and a manual photographing start signal circuit and an audio photographing start (select one of the Th circuit). 1. A voice input camera, comprising: a circuit selection switching means for selecting a signal to start recording; and a timing device f for energizing a voice recognition device for a predetermined period of time only when an audio recording start signal circuit is selected.