JPH0357061A - Electronic system pocketbook device - Google Patents

Abstract

PURPOSE:To prevent unnecessary power consumption in case of erroneous turning-on of a power switch during carrying by constituting a device so that information of the power switch is ineffective at the time of closing a cover switch. CONSTITUTION:An engaging part 41 is provided on the inside of a cover stopping button 4 and is engaged with a projecting part 21 attached to t cover 2 to stop the cover. These projecting part 21 and engaging part 41 are made of a conductive member and form a cover switch 5. When the cover switch 5 has the projecting part 21 and the engaging part 41 engaged, a conduction signal indicating this state is transmitted to a data processing part. Consequently, as operation signal for detachment of a cover clip 3 is outputted as the turning-off signal of the cover switch 5 when the projecting part 21 and the engaging part 41 are not brought into contact with each other. Thus, the problem is resolved that a power source is turned on again against user's well at the time of applying a pressure to the vicinity of the power switch by some cause and battery is unnecessarily consumed.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is applicable to electronic processing 8! This invention relates to an electronic notebook device equipped with I-functions. [Prior Art] In recent years, a device called an electronic notebook or electronic memo pad for storing schedules etc. electronically has been developed in Japanese Patent Laid-Open No. 59-111.
This is disclosed in Publication No. 560, etc. This is a notebook with memo paper similar to a regular notebook and a function for electronic data processing.The data processing section inputs necessary information using keys, processes it with an internal processing device, It is designed to store necessary data.
Schedules and other information are also stored electronically as needed, allowing them to be read out at any time. [Problems to be Solved by the Invention] However, in such conventional devices, the power switch is often provided on the same side as the key of the data processing unit, and for economical reasons, the power switch in recent years has been installed on the same side as the key of the data processing unit. There are many push-button types instead of formulas. Therefore, even if the power is turned off after use, if pressure is applied near the power switch for some reason, the power will be turned back on even though there is no intention to use it, resulting in the problem of unnecessary battery consumption. was there. [Means for Solving the Problems] In order to solve such problems, a first invention provides a cover switch that outputs an operation signal indicating that a cover clip has been removed, and a cover switch that outputs an operation signal when the cover switch outputs an operation signal. It is equipped with a clock signal sending circuit that sends out a clock signal. The second invention includes a cover switch that outputs an operation signal indicating that the cover clip has been removed, and a power supply forming circuit that forms a supply path for power supply current when the operation signal is output from the cover switch. be. [Operation 1] In the first invention, when the cover clip is removed, an operation signal is output from the cover switch provided there, and a clock signal is sent out in response to that signal, and the operation of the entire device is started. In the second invention, when the cover clip is removed, an operating signal is output from the cover switch provided there, and the operating signal forms a power supply current supply path. [Example] Fig. 1 is a perspective view of a system notebook constructed by applying the present invention, in which 1 is a data processing section, 2 is a cover of the notebook, and 3 is a system notebook constructed by applying the present invention.
is a cover clip that keeps the cover 2 closed when this notebook is not in use, and the cover clip 3 is fastened by a cover fastening button 4. As shown in FIG. 2, for example, this cover fastening button 4 is provided with an engaging portion 41 on the inner side thereof, which engages with a protrusion 2l attached to the cover 2 side to fasten the cover.

These protrusions 2. and the engaging portion 4l are made of a conductive member, and they form a cover switch 5. The cover switch 5 is configured such that when the protrusion 2 and the engaging part 41 are in an engaged state, a conductive signal indicating this is transmitted to the data processing part. Therefore, in this example, the operation signal for removing the cover clip 3 is output when the protrusion 21 and the engaging portion 4l are no longer in contact, that is, the cover switch 5 is output as an OFF signal. FIG. 3 shows a clock signal sending circuit of the data processing section which sends out a clock signal when an operating signal is output from the cover switch 5, and FIG. 4 shows waveform diagrams of each part thereof. The state of the cover switch is periodically monitored by software interrupts while the CPU (not shown) is operating. First, as shown in FIG. 4(f), when the cover switch (indicated as cv.sw in FIGS. 3 and 4) is opened at time point to, the ground air supplied to the terminal 12 is removed. is released and the level of terminal 12 becomes level 1. This signal is then sent to terminal 28 at CV. It is supplied as an ST signal, and this signal is periodically monitored by the CPU. When power switch l9 is pressed at time t1, inverter 2
Since earth air is supplied to the input of 2, the signal is as shown in Figure 4 (
As shown in e), it becomes O level. Therefore, since both the input terminals of the AND circuit 23 become 1 level, the 7 flip-flop 24 takes in the 1 level of the D input terminal and Q
Outputs a 1-level signal from the output. For this reason, NMI (
Non-mascaval interrupt) Terminal 26 to 4th
The signal shown in figure (g) is output. Further, this NMI signal is also supplied to the oscillation circuit 17 via the OR circuit 16, so the oscillation circuit 17 enters the clock enable (CLK.EN) state as shown in FIG. 4(a), and the oscillator 18
A clock signal CLK with a frequency determined by is generated.

Therefore, a clock (CLK) signal is output from the terminal 25 as shown in FIG. 4(b). At the same time that the clock is supplied and the CPU starts operating, an interrupt is generated by the NMI, and the software recognizes that the cover has been opened and can start normal operation. 4. Write signal REG. shown in FIG. 4 (C). W is supplied, and a data signal CPU.W is supplied to the terminal 10. DT is supplied. Data signal CPU. DT
is supplied with an O level signal when it generates a clock signal, and a 1 level signal when it stops the clock signal and enters the sleeve state. Since time t4 is the time when this device starts to be used, the clock signal is set to W.
The data CPU.Ir must be continuously generated and supplied to the terminal 10. DT is at 0 level. Therefore, a 0-level CLK-REG signal is output from the Q terminal of the flip-flop 14, as shown in FIG. 4(d).
This CLK. The REG signal is supplied to an oscillation circuit 17 via an OR circuit 16. On the other hand, at time t4, FIG.
h), the NMI is sent from the CPU to the terminal 13.
．． Since the CL signal is supplied, the NMI signal sent from the flip-flop 24 changes to O level as shown in FIG. 4(g). Therefore, the oscillation circuit 17 receives CLK. Operates only with REG signal. When the power switch 19 is pressed to stop the device operation at time t5, a 0 level signal is supplied to the inverter 22 and a 1 level signal is sent from the flip-flop 24, as shown in FIG. 4(e). , from terminal 26 to the fourth
The NMI signal shown in Figure (g) is sent. This NMI signal is supplied to the CPU from the terminal 26, and after the NMI interrupt handling routine clears the NMI with the NMI/CL signal, at time t7, the REG. The W signal is supplied to the terminal 11, and at the same time, a 1 level signal is supplied to the terminal 10. Therefore, the flip-flop l4 is
Since the CLK.level signal is taken in and output from the Q terminal, the CLK. The REG signal is supplied to an oscillation circuit 17 via an OR circuit 16. Since no NMI signal is generated at time point 78, CLK. The EN signal becomes O level at time t8,
The operation of the oscillation circuit 17 stops and no clock signal is generated. Therefore, the signal CLK shown in FIG. 4(b), which had been sent out from the terminal 25, is no longer sent out. In this way, when the transmission of the clock signal is stopped, the CPU stops operating, and power consumption is kept low. When the power switch 19 is pressed again at time t9, a clock signal is generated in the same manner as described above. Then, when the cover switch is closed at time tl4, the state of the cover switch is CP
As shown in FIG. 4(i), it is periodically monitored by U's software interrupt, so at a certain point tl at the monitoring timing.
5, it is detected that the cover switch is closed. This detection result is transmitted from terminal 28 to CV. CPU as ST signal
Therefore, the CPU sends the REG-W signal to the terminal 1l and also supplies a 1-level signal to the terminal 10, so that the CLK. The REG signal becomes L level as shown in No. 41J(d), and the clock signal stops. 9. In other words, the clock signal is stopped not only when the device operation is stopped by the power switch, but also when the cover switch is closed during operation, thereby reducing power consumption. Therefore, even if the power switch 19 is accidentally turned on while being carried around, the clock will not be supplied to the CPU, so power consumption will not increase even when the computer is not in use. 5 and 6 show the operation of the CPU, and each time the NMI signal is generated, the NMII! of FIG. II import processing is performed. In FIG. 5, the switch state is determined at step 100, that is, the SW. ST is 1
If it is determined that it is at the level, a determination is made in step 101 as to whether or not it is currently on. This is a judgment that is made when the power is first turned on, and since it is initially judged as rNOJ, the power flag is turned on as shown in steps 102 to 105, and the CLK. After processing to set the REG signal to 0 level and clear the NMI, return to the normal processing routine. When the power is on, that is, when a clock signal is being generated, steps 106 to 108 show power flag off processing, NM■ clear processing, and C
L.K. Processing is performed to bring the REG signal to level 1. Note that if the switch state is not l in step 100, other NM [
Processing is performed. FIG. 6 shows the soft interrupt processing, step 110.
Whether or not the cover switch is open is monitored by a soft interrupt at CLK. Processing is performed to bring the REG signal to level 1. If the cover switch is open, step 113
Other periodic interrupts are performed as shown in . 7th
8 and 8 are circuit diagrams showing another embodiment, in which control is not performed to generate or stop a clock signal, but to directly control the power supply current. In this case, the main body switch 31 and the cover switch 5
Both are normally on, that is, once turned on or off, they must remain on or off until the next change in state. In FIG. 7, the power switch 31 of the main body and the cover switch 5 are connected in series, so that when both are closed, the current supplied from the battery 30 is supplied to the load 32. In FIG. 8, when the cover switch 5 is turned on, a 1 level signal is supplied from the battery 30 to the buffer via the resistor 33, and the transistor 35 is turned on. Therefore, when the power switch (heavy source switch on the main body side) is on, the transistor 36 is also turned on, and current is supplied to the load 32. Fig. 9 shows another embodiment of the cover switch, and the cover clip 3 The contacts of the switch are composed of 41 and 42, and when the cover clip 3 is pressed by the clip holder 40, the contacts 41 and 42 come into contact with each other. Fig. 10 shows still another example of the cover switch, which is equipped with a push button switch 50 on the cover side, and when the cover clip 3 is removed, it becomes as shown in Fig. When this occurs, the push button switch 50 is pressed by the protrusion 5l and turned on. At this time, the protrusion 51 engages with the engagement pins 52 and 53 and is prevented from coming off. [Effects of the Invention] As explained, in this invention, the power switch of the device is enabled when the cover clip is removed, but the power switch information is disabled when the cover switch is closed. This has the effect of not causing unnecessary power consumption even if the power is turned on.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a notebook showing an embodiment of the present invention;
The figure is a sectional view of the cover switch part, Figure 3 is a circuit diagram of the clock generation circuit, Figure 4 is a waveform diagram of each part of Figure 3, and Figures 5 and 6 show the operation of the CPU corresponding to Figure 3. 7 and 8 are circuit diagrams showing other embodiments, and FIGS. 9 and 10 are sectional views showing other embodiments of the cover switch. 1...Data processing section, 2...Cover, 3...
・Cover clip, 4...Cover fastening button, 5・
...Cover switch, 14.24...Flip-flop, l7...Oscillation circuit, 19. -Power switch.

Claims (2)

[Claims] (1) In an electronic organizer device equipped with a cover clip, there is a cover switch that outputs an operation signal indicating that the cover clip is removed, and a clock signal that outputs a clock signal when the operation signal is output from the cover switch. An electronic notebook device characterized by comprising a sending circuit. (2) In an electronic organizer device equipped with a cover clip, a cover switch that outputs an operating signal indicating that the cover clip has been removed, and a power source that forms a power supply current supply path when the operating signal is output from the cover switch. An electronic notebook device characterized by being equipped with a forming circuit.