Volume output adjusting circuit
A technology for output adjustment and voice output, applied in transducer circuits, electrical components, sensors, etc., to solve the problems of too large and too small the volume of the buzzer dial tone.
Inactive Publication Date: 2011-06-15
TECO IMAGE SYST
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Problems solved by technology
[0006] The main purpose of the present invention is to provide a volume output adjustment circuit to solve the problem that the volume of the dial tone output by the buzzer is too large or too small due to the different sizes of the dial tone signals sent by the switches in various countries in the known multifunctional business machine. shortcoming
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[0019] Some typical embodiments embodying the features and advantages of the present invention will be described in detail in the description in the following paragraphs. It should be understood that the present invention is capable of various changes in different ways without departing from the scope of the present invention, and that the description and drawings therein are illustrative in nature rather than limiting the present invention.
[0020] see figure 1 , which is a circuit block diagram of a volume output adjustment circuit in a preferred embodiment of the present invention. like figure 1 As shown, the volume output adjustment circuit 1 of the present invention can be applied to a multi-function business machine or a facsimile machine, but not limited thereto. The volume output adjustment circuit 1 of the present invention can include a signal line 10, a power adjustment unit 11, a power The conversion unit 14, the driver 15 and the voice output component 16, wher...
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The invention discloses a volume output adjusting circuit for receiving a dialing tone signal transmitted by a switch and receiving a preset output volume number. The volume output adjusting circuit comprises a voice output element, a signal wire, a detection unit, a power controller, a power conversion unit and a driver, wherein the signal wire is used for receiving the dialing tone signal; the detection unit is connected with the signal wire and detects the voltage value of the dialing tone signal; the power controller is connected with the detection unit and used for calculating conversion multiplying factor of volume amplification of the dialing tone signal according to the voltage value of the dialing tone signal and the preset output volume number; the power conversion unit is connected with the signal wire and the power controller and used for receiving the dialing tone signal and converting the dialing tone signal according to the set conversion multiplying factor of the power controller; and the driver is connected with the power conversion unit and the voice output element and used for driving the voice output element to output the converted dialing tone signal. The volume output adjusting circuit can solve the problem of over high or over low volume due to the change of a switch system or the change of a communication environment.
Description
technical field [0001] The invention relates to an adjustment circuit, in particular to a volume output adjustment circuit. Background technique [0002] Known multifunction business machines or facsimile machines are all equipped with a buzzer (speaker), and this buzzer can convert it into sound transmission according to the dial tone signal (dial tone signal) on the telephone line, and is used for reminding User's current line status. [0003] At present, the general dial tone output method needs to connect the multi-function business machine with the switchboard of the telecommunication bureau first, and the switchboard will transmit a dial tone signal to the telephone line connected with the multi-function business machine, so that the internal circuit of the multi-function business machine according to The user pre-sets the magnification value to control a power conversion unit to amplify or reduce the dial tone signal, and finally transfer the converted dial tone sign...
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IPC IPC(8): H03G3/20H04R3/00
Inventor 陈政原郭景智
Owner TECO IMAGE SYST