JPH04182693A - Small-sized electronic appliance - Google Patents

Abstract

PURPOSE:To eliminate the waste of utilizing electric power by stopping the supply of the electric power for driving or illuminating to a display part which has no possibility of being used by the result of the detection of opening and closing of a cap body. CONSTITUTION:An optical sensor receives light, upon opening of the cap body, and emits the output of an H level to stop driving the 1st display part 32 having no more possibility of being used and to start driving the 2nd display part 37 to be used hereafter. The optical sensor is no longer irradiated with the light and the output thereof falls to an L level when the cap body 1 is closed. The driving of the 1st display part 32 is started and the driving of the 2nd display pat 37 is stopped. A lamp 35 is lighted when there is an operation of a lamp switch Sl in order to illuminate the 1st display part 32.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a small electronic device equipped with a lid that can be opened and closed.

[Prior Art and its Problems j] Conventionally, small electronic devices have been commercialized that include a lid that can be opened and closed and a display section on the top or bottom surface of the lid or on the top of the main body.

By the way, in this type of small electronic device, there is a display part that is not used depending on the open/closed state of the lid (for example, when the lid is closed, the display part on the bottom surface of the lid is inevitably not used). However, in conventional models, power is also supplied to unused display sections as described above, resulting in wasted power usage.

[Object of the invention] The present invention has the following features:1. I: This was developed in view of the above-mentioned circumstances, and the object is to provide a small electronic device that eliminates wasteful use of power by supplying power even to display parts that are not likely to be used.

[Summary of the Invention 1] In order to achieve the above object, the present invention provides a means for detecting the opening and closing of the lid body, and uses the detection result of this means to drive or illuminate a display section that is not likely to be used. The main point is that the power supply for the equipment was stopped.

[Examples] Hereinafter, the present invention will be specifically described based on examples shown in the drawings.

Configuration of the first embodiment> FIG. 1 shows the external appearance of the first embodiment of the present invention, and FIG. FIG. 3(b) shows a state in which the lid 1, which is attached to the main body 7 via the bottle 6 so as to be openable and closable, is opened. As shown in FIG. 1(a), a first liquid crystal display panel 2 of a first display section 32, which will be described later, is provided at the center of the upper surface of the lid 1.
is disposed below it, and below it is a first switch section 28 which will be described later.
A first switch arrangement section 3 is provided in which five push button switches are arranged. Further, as shown in FIG. 1(b), a second liquid crystal display panel 4 of a second display section 37, which will be described later, is provided on the bottom surface of the lid l, and a second liquid crystal display panel 4 of a second display section 37, which will be described later, is provided on the top surface of the main body 7.
A key sheet 8 is provided in which a large number of sheet switches of the second switch section 29 (to be described later) are arranged in a matrix, and below the key sheet 8, there is an optical sensor 9 that detects the opening and closing of the lid l using light.
Further, a lamp switch S is provided on the side surface of the main body 7 to operate the first liquid crystal display panel 2 or the second liquid crystal display panel 4 to turn on the illumination lamp.

! Figures 1 and 2 show the circuit configuration of this example.
The configuration is centered around the CPU 20 and other circuits are connected to it. The CPU 20 is a circuit unit that processes and processes incoming data and sends it out, receives signals from each circuit, and sends control signals to each circuit based on them to control them.

The oscillation circuit 21 is a circuit that always sends out a signal with a constant frequency, and the frequency dividing circuit 22 is the oscillation circuit 21 described above. The 0 time counting circuit 23, which is a circuit that frequency-divides the signal from This is a circuit that obtains the time and provides it to the CPU 20. The RS flip-flop 24 is a circuit that is set to the 7-, 7-, or reset state by a signal from the CPU 20, and sends out an output Q in the set state. The AND gate 25 is opened by the output Q from the RS flip-flop 24 and outputs the IHzQ signal from the frequency divider circuit 22 to the timer 2.
This is the circuit that applies to 6. The timer 26 receives a clear signal from the CPU 20, clears the counted elapsed time, counts the IHz signal sent thereafter to obtain the elapsed time, and sends this to the CPU 20. , is a circuit that sends a 5-minute signal t5 to the CPU 20 every 5 minutes.

The RAM 27 is a circuit that stores data sent to the CPU 20 under the control of the CPU 20 and sends the stored data to the CPU 20.
The volume register N in 7 is a register in which a value specifying the volume of the alarm sound from the alarm system M30, which will be described later, is set, and the opening/closing flag FT is a flag that is set when the lid body 1 is open. The target flag FM is a flag that specifies what should be displayed on the first display section 32, that is, the first liquid crystal display panel 2, which will be described later. The elapsed time during which it was open is specified, and when it is unloaded, the current time and other data from the time counting circuit 23 are specified. The lamp switch S is a switch operated to illuminate the first display section 32 or the second display section 27 by lighting a lamp 35 or a lamp 40, which will be described later. The resistance R is
This resistor is used to maintain a predetermined potential on the fixed contact side of the lamp switch SR when the lamp switch Sl is open.

The first switch unit 28 includes the 5 switch shown in FIG.
This is a circuit section that includes push button switches and provides a corresponding input signal to the CPO 20 when any one of these push button switches is operated. The second switch section 29 is a circuit section that includes a large number of sheet switches shown in FIG. 1(b) described above, and sends a corresponding input signal to the CPU 20 when any one of them is operated.

The sound alarm device 30 receives the signal A from the CPU 20.

After receiving B and C, the CPU outputs the corresponding tones of A, B, and C.
This is a circuit unit that generates a volume based on the volume designation data from 20. The I-th display section drive circuit 31 is a CPU 20
This circuit displays data from the first display unit 32, that is, the first liquid crystal display panel 2 on the top surface of the lid body.
The display control circuit 33 is a circuit that receives signals from the CPU 20 and controls the first display drive circuit 31. The lamp drive circuit 34 receives a signal from the CPU 20 and drives the lamp 35.
This is a circuit that lights up the first liquid crystal display panel 2 of the first display section 32. The second display drive circuit 36 is a CP
It is a circuit that displays data from U20 on the second display section 37, that is, the second liquid crystal display panel 4 on the bottom surface of the lid l, and the second display section control circuit 38 receives a signal from the CPU 20 and drives the second display section. This is a circuit that controls the circuit 36. The lamp drive circuit 39 is a circuit that receives a signal from the CPU 20 and turns on the lamp 40 to illuminate the second liquid crystal display panel 4 of the second display section 37.

Operation> Next, the operation of this embodiment configured as described above will be explained. FIG. 3 is a flowchart generally showing the operation of this embodiment.

(a) Operation when the lid is opened At this time, the optical sensor 9 receives light and outputs an H level output, but this is confirmed in step Sl and it is confirmed that the open/close flag FT is still lowered. After confirming this, set it up (steps S2 and S3), and then stop driving the first display section 32 that is no longer likely to be used.
Start driving the second display section 37 that will be used from now on (
Step S4), and sends a set signal to the RS flip-flop 24 to set it in the set state, causing the timer 26 to start measuring the elapsed time (step S5), and further sends a signal A to the sound alarm device 3o to generate sound A. (Step 7 S6). Next, it is checked whether the lamp switch S1 is operated (step S7), and if it is operated, it is confirmed that the open/close flag FT is set, and the second liquid crystal display panel 4 is illuminated. The lamp 40 is turned on (step 5io), and when the lamp switch Sl is not operated and after the process of turning on the lamp 40 is completed, the process returns to step St. After this, it is necessary to confirm that the output of the optical sensor 9 is at H level and that the opening/closing flag FT has already been set in step S1. S2), check that the 5-minute distillation number t5 has not been sent yet.Step 515), if there is an input by operating the sheet switch of the second switch section 29, execute the corresponding switch processing. Step S19.
520), the results of the above switch processing, etc. are displayed on the second display section 37.
Step 521)
The above-described lighting process of the lamp 40 (steps S7, S8, sio) is performed depending on whether or not the lamp switch Sl is operated, and the process of returning to step Sl is repeated.

When 5 minutes have passed after repeating the above operation, the timer 26 sends a 5 minute signal t5, which is detected in step 515, and the value of the volume register N is increased by 1. The value of the volume register N is given to the sound alarm device w30, and the sound C is generated at the volume corresponding to the value of the volume register N (steps 516 to 518).
Even if the user forgets to close the lid, the user can easily recognize this fact and immediately close the lid, thereby eliminating unnecessary power consumption.Next, the same switch process as described above (step S19.520) , display processing (step 32
1), lighting process of lamp 40 (steps S7, S8.3
10), etc., and return to step 31.

From then on, the same operation as above is repeated, and every 5 minutes, the C sound is generated at a volume one rank higher than the previous time.6 (Q) Operation when the lid is closed Next, the above operation is repeated. The operation when the lid l is closed after completing the operations described above will be explained. At this time, the optical sensor 9 is no longer irradiated with light and its output becomes L level, but this is detected in step S1 and it is confirmed that the open/close flag FT is still set. Lowering the open/close flag FT (step S25.526), starts driving the first display section 32, and stops driving the second display section 37 (step S52)
7) Furthermore, the RS flip-flop 24 is reset to stop measuring the elapsed time by the timer 26 (
Step 328), sends the signal B to the sound alarm device 30 to generate the B sound (step 529), and displays the display target flag FM.
(step 530), and when the lamp switch 5 is operated to illuminate the first display section 32, the lamp 35 is turned on.
Steps 57 to S9), then step S
Return to l. Thereafter, the following operations are repeated.

That is, it is confirmed that the output of the optical sensor 9 is at the L level and that the opening/closing flag FT is set (Step Sl, 525), and there is no input by operating the push button switch of the first switch section 28. If so, it is checked whether the display target flag FM is set, and if it is set, it is lowered and switch processing corresponding to the switch operation is executed (steps 535 to 538). When the above-mentioned switch processing is completed and when there is no input by switch operation, the data specified by the display target flag FM at that time is displayed on the first display section 32. That is,
When the display target flag FM is set, timer 26
displays the elapsed time measured, and when the display target flag FM is lowered, other data, such as the current time of the time counting circuit 23, is displayed (steps 539 to 539).
541) After that, when the lamp switch 5 is operated to illuminate the first display section 32, the lamp 35 is turned on (steps 57 to S9), and the process returns to step S1.

Configuration of the second embodiment The appearance of this embodiment is generally the same as that of the first embodiment, but there is no liquid crystal display panel on the top surface of the 1M body.
There is a pointer display section that displays the current time using a pointer.

FIG. 4 shows the circuit configuration of this embodiment, in which the CPU 5
0 as the center, and other circuit sections are connected to it. The CPU 50 processes data from each circuit section.
This is a circuit section that processes and sends out signals, and also sends signals to each circuit section to control them. The oscillation circuit 51 always
This is a circuit that sends out a signal at a predetermined frequency, and the frequency dividing circuit 52 divides the frequency of the above signal to obtain a signal of one pulse every minute, that is, an IP/M signal, which is sent to the ant gate 53 and This is the circuit that sends the signal to 60. and gate 53
is a circuit that is opened by the inverted output Q of the RS flip-flop 59 and sends the IF/M signal to the OR gate 54. The OR gate 54 is a circuit that provides a certain IP/M signal or a fast transmission signal r from the CPU 50 sent via the ant gate 53 to the motor drive circuit 55.

The motor drive circuit 55 is a circuit that receives a signal sent via the OR gate 54 and drives a step motor 56 , and the step motor 56 is a motor that moves the pointer 58 via a wheel train mechanism 57 .

The RS flip-flop 59 is a circuit that enters a set or reset state upon receiving a set or reset signal from the CPU 50, sends an output Q to the AND gate 60 in the set state, and sends an inverted output page to the AND gate 53 in the reset state. be. The AND gate 60 is opened by the above output Q, and the frequency dividing circuit 52 is connected to the L P/M
This circuit provides a signal to the 12-hour timer 61. The 12-hour timer 6e counts the I P/M signal sent through the AND gate 60, measures the elapsed time, and sends this to the CPU 50. In addition, this circuit shortens the measured elapsed time by one minute each time it receives the subtraction signal G from the CPU 50.

The RAM 62 is a circuit that stores various data under the control of the CPU 50, and similarly to the first embodiment described above, it also includes various registers such as an open/close flag FT.

The second switch section 63 is a circuit that includes a plurality of push button switches arranged on the top surface of the lid, and sends a corresponding SW7000 input signal to the CPU 50 when any one of the push button switches is operated. The second switch section 64 is made up of a plurality of sheet keys arranged on the top surface of the main body that can be operated only when the lid is open, and is a circuit that sends a corresponding signal to the CPU 50 when any one of them is operated. It is.

The digital display control circuit 65 is a circuit that receives signals from the CPU 50 and controls the digital display drive circuit 66. The digital display drive circuit 66 is a circuit that is controlled by the digital display control circuit 65 and displays data from the CPU 50 on the digital display 67.

<Operation> Next, the operation of this embodiment configured as described above will be described in the fifth section.
The explanation will be based on the general flowchart shown in the figure.

(B) Operation when using the lid In this case, the output of the optical sensor is at H level, but this is detected in step S50 and it is confirmed that the opening/closing flag FT is still O (step S5). Then, set the opening/closing flag FT (Stella 7'S 52). Then R.S.
The flip-flop 59 is set (step 3).
53), the 12-hour timer 61 starts measuring the elapsed time; in this case, the AND gate 53 is closed and the hand movement of the pointer 58 stops); the digital display section 67 starts displaying the time; step 554); Step 3
Return to 1.

After the above operation, the following operation is repeated.

That is, it is necessary to confirm that the output of the optical sensor is at H level and the lid is open (step 350), and the open/close flag FT is
Make sure that it has already been set up (step 551).
Next, when there is an input by operating the switch of the second switch section 64, the corresponding input processing is executed (steps S55 and 556), and after that, the item specified as the display target is digitally displayed. Displayed on the display section 67 (
Step 557), return to step S50.

(o) Operation when the lid is closed After using the lid in the open state as described above, when the lid is closed, the output of the optical sensor becomes L level, which is set at step S50. is detected and the process proceeds to step S60.
In this step S60, it is confirmed that the open/close flag FT has not been lowered yet, and then the open/close flag FT is lowered (step 7 561), and then the RS flip-flop 59 is set to the reset state in step 56.
2) Stop measuring the elapsed time by the 12-hour timer 61 and restart the movement of the pointer 58 (see FIG. 4), stop the display by the digital display section 67 (step 563),
After that, the process returns to step S50.

After the above operation, the following operation is repeated. That is, it is confirmed that the output of the optical sensor is at L level and that the opening/closing flag FT is lowered (step S50.560).
), until the elapsed time measured by the 12-hour timer 61 reaches O, the pointer display advances by one minute, and the 12-hour timer 6
Step 565: Set the elapsed time of 1 to 1 minute shorter.
-567), and then when there is an input by operating the switch of the first switch section 63, the corresponding input processing is executed (steps 368 and 569), and then step S
Return to 50.

As described above, while the lid is open, the movement of the pointer 58, which is not likely to be seen by the user, is stopped, but the time between the movement of the pointer 58 being stopped and the time being zero is 12 hours. After the lid is closed, the pointer 5
8 is moved in rapid forward motion by the time measured by the 12-hour timer 61, so after this fast forwarding, the hand 5
8+Shire means the current time.

[Effects of the Invention] As described in detail above, the present invention provides a means for detecting the opening and closing of the lid body, and uses the detection result of this means to control the drive or illumination of a display section that is not likely to be used. Because it concerns small electronic equipment whose power supply has been stopped,
It is possible to provide a small electronic device that eliminates wasted power usage due to power supply to a display section that is unlikely to be used.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the appearance of the first embodiment of the present invention, FIG. 2 is a diagram showing the circuit configuration of the embodiment described in L, FIG. 3 is a flow chart showing the operation of the above embodiment, and FIG. 4 is a diagram showing the circuit configuration of the embodiment described above. FIG. 5, which is a diagram showing the circuit configuration of the second embodiment of the present invention, is a flowchart showing the operation of the second embodiment. ■... Lid body, 2... First liquid crystal display panel, 3... First switch arrangement section, 4...
・Second liquid crystal display panel, 6...bin, 7...
...Body, 8...Key sheet, 9...
・Light sensor, 20.50...CPU, 21.5
1... Oscillation circuit, 22.52... Frequency dividing circuit, 23... Time counting circuit, 24.59...
...RS flip-flop, 26...Timer, 27.62...RAM, 28.63...
...First switch part 129.64... Second switch part, 30... Sound alarm device, 31...
・First display section drive circuit, 32...First display section,
33...First display unit control circuit, 34.39...
...Lamp drive circuit, 35.40...Lamp, 36...Second display section drive circuit, 37...
...Second display section, 38...Second display section control circuit, 55...Morph drive circuit, 56...
・Step motor, 57... Wheel train mechanism, 58.
...Guideline, 61...12 hour timer, 6
5...Digital display control circuit, 66...
...Digital display drive circuit, 67...Digital display, Sl...Lamp switch, FT...
...Open/close flag, FM...Display target flag, R...Resistance, t5...5 minute signal, r
...Fast transmission signal, G...Subtraction signal. Agent Patent Attorney Mitsuru Chonan-Male 21 Pa＼,- (a) Figure 1

Claims (3)

[Claims] (1) In a small electronic device equipped with a lid that can be opened and closed, a display section provided on the top surface of the lid; a detection means for detecting opening/closing of the lid; A small electronic device characterized by comprising means for stopping the operation of the display section when the display section is detected. (2) In a small electronic device equipped with a lid that can be opened and closed, the first display section provided on the top surface of the lid body, the second display section provided on the bottom surface of the lid body, and the first display section provided on the bottom surface of the lid body. a first illumination means for illuminating the display section; a second illumination means for illuminating the second display section; a detection means for detecting opening/closing of the lid; an external operation switch; and when the external operation switch is operated. when the detection means detects that the lid is opened, the second illumination means is driven, and when the detection means detects that the lid is closed, the first illumination means is driven. A small electronic device comprising a drive means for driving an illumination means. (3) In a small electronic device equipped with a lid that can be opened and closed, a detection means for detecting the opening and closing of the lid; and a sound generating means for generating sound in conjunction with the opening and closing of the lid detected by the detection means. A small electronic device characterized by comprising: