JPH02105640A - Oscillation element driving circuit for individual selective call receiver - Google Patents

Abstract

PURPOSE:To obtain cost reduction and the miniaturization of an individual selective call receiver by providing an oscillation circuit capable of generating two or more different kinds of signals, and an oscillation element to generate selectively either a call tone or call oscillation by the signal outputted from the oscillation circuit. CONSTITUTION:The oscillation circuit 2 generates two kinds of signals (driving signal) in which at least either a frequency, amplitude, or a waveform is different based on a call signal. In other words, two kinds of call signals; the one for calling a tone and the other for calling oscillation, are prepared in advance, and a prescribed signal is generated corresponding to an individual signal, respectively. And the oscillation element 3 generates either the call tone or the call oscillation corresponding to the driving signal from the oscillation circuit 2. As the oscillation element 3, a piezoelectric element, etc., can be recommended, whose oscillation generates a tone corresponding to the change of the frequency of the driving signal, and oscillates the individual selective call receiver main body.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vibrating element drive circuit for an individual selective calling receiver that can select either sound or vibration as a calling means.

[Prior Art] Conventionally, as shown in FIG. 2, this type of vibrating element drive circuit includes a circuit system consisting of a ringing tone generating circuit 4 and a vibrating element 5 that generates a ringing tone based on a signal from the circuit; It was equipped with a circuit system consisting of a ringing vibration generating circuit 6 and a vibrating element 7 that generates ringing vibrations in response to a signal from the circuit.

Then, by sending the ringing signal 1 to either one of the two circuits using the ringing tone/ringing vibration switching device 8, a ringing tone or a ringing vibration is generated.

[Problems to be Solved] The conventional vibrating element drive circuit described above has two circuit systems and requires a vibrating element for each circuit system, resulting in high cost and large size. was.

The present invention has been made to solve these problems, and an object of the present invention is to provide a vibrating element drive circuit for an individual selective paging receiver that is small and inexpensive.

[Means for Solving the Problems] In order to achieve the above object, the vibrating element drive circuit of the individual selective paging receiver of the present invention generates two or more types of signals that differ in at least one of frequency, amplitude, or waveform based on the paging signal. The device is configured to include an oscillation circuit capable of generating an oscillation circuit, and a vibration element that selects and generates either a ring tone or a ring vibration based on a signal output from the oscillation circuit.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. In the drawing, 2 is an oscillation circuit, and based on the calling signal, two types of signals (drive signal ) is now occurring. That is, two types of call signals, one for sound ejection and one for vibration call, are prepared in advance, and a predetermined drive signal is generated corresponding to each individual signal. Here, the frequency, amplitude, and waveform of each drive signal are set so that the vibration element 3, which will be described later, can generate a ring tone and a ring signal, respectively. Note that this oscillation circuit 2 has a frequency, an amplitude,
Any known oscillation circuit that can vary at least one of the waveforms can be applied.

The vibration element 3 generates either a ringing tone or a ringing vibration in response to a drive signal from the oscillation circuit 2. For example, a piezoelectric element may be used as the vibration element 3.
Frequency (amplitude) of the drive signal.

The vibration of the same element generates sound or vibrates the main body of the individual selective call receiver in response to changes in the waveform (which may also be a waveform).

When a call signal for sound ejection is sent to the above-mentioned vibrating element drive circuit, the single oscillation circuit 2 sends a drive signal corresponding to the call signal to the vibrating element 3. The vibration element 3 vibrates in response to this drive signal and generates a ringing tone.

On the other hand, when a calling signal for vibration calling is sent to the vibrating element drive circuit, the oscillation circuit 2 sends a driving signal corresponding to the calling signal to the vibrating element 3, so that the vibrating element 3 generates the calling vibration. Occur.

Note that the present invention is not limited to the one embodiment described above, and for example, one oscillation circuit can generate three or more types of drive signals, and each drive signal causes a vibration element to generate a different ring tone or ring signal. It is also possible to have a configuration in which this occurs.

[Effects of the Invention] As explained above, according to the vibrating element drive circuit of the individual selective calling receiver of the present invention, both the ringing tone and the ringing vibration can be selectively generated using one vibrating element, so the cost is low. This can contribute to miniaturization of individual selective calling receivers.

[Brief explanation of the drawing]

ff FIG. 11 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional example. l: Call signal 2: Oscillation circuit 3: Vibration element No.

Claims (1)

[Claims] an oscillation circuit capable of generating two or more types of signals having at least one of different frequencies, amplitudes, or waveforms based on a ring signal; and either a ring tone or a ring vibration based on the signal output from the oscillation circuit. 1. A vibrating element drive circuit for an individual selection call receiver, comprising a vibrating element that selectively generates a vibration.