CN1193520C - Apparatus capable of regulating ultrasonic wave and infrared ray carrier frequency - Google Patents
Apparatus capable of regulating ultrasonic wave and infrared ray carrier frequency Download PDFInfo
- Publication number
- CN1193520C CN1193520C CNB011408731A CN01140873A CN1193520C CN 1193520 C CN1193520 C CN 1193520C CN B011408731 A CNB011408731 A CN B011408731A CN 01140873 A CN01140873 A CN 01140873A CN 1193520 C CN1193520 C CN 1193520C
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- signal
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- carrier signal
- ultrasonic waves
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Abstract
The present invention discloses a transmitting device which can adjust the frequency of carrier waves of ultrasonic and infrared. The present invention utilizes an integrated circuit with oscillation frequency as a transmission device, and a frequency divider, a multiplexer and an output buffer are arranged in the integrated circuit. The present invention utilizes an infrared light emitting diode or an ultrasonic converter as a carrier signal for transmitting infrared or ultrasonic. The oscillation frequency is divided by the frequency divider, and is transferred to an input end of the multiplexer, the other input end of the multiplexer is a data output signal which is controlled by users, and the data is output by the output buffer. The integrated circuit of the present invention comprises two carrier wave output ports, wherein the phases of the output carrier signals of the two carrier wave output ports are opposite. The present invention can transmit the transmitted carrier signals of the infrared, and can also switch the carrier signals into the transmitted carrier signals of the ultrasonic.
Description
Technical field
The invention relates to a kind of device that produces wireless signal transmission, particularly about adjusting the device of ultrasonic waves and infrared ray carrier frequency emission.
Technical background
In the prior art, if when transmitting as signal with infrared ray or ultrasonic waves, need produce infrared ray or supersonic carrier signal in a different manner, for example produce oscillating circuit, but the oscillator signal that this this mode produced then needs to adjust its frequency of oscillation, and is very inconvenient in the use.Fig. 1 provides the circuit diagram of known infrared ray or ultrasonic waves signal generation device, wherein integrated circuit 10 output is connected to the complicated carrier wave hardware circuit 13 of design and infrared light-emitting diode or ultrasonic waves transducer 12, the former is in order to produce the required carrier signal of infrared ray or ultrasonic waves output, and the latter then realizes the purpose of signal output.Yet, the frequency characteristic difference of infrared light-emitting diode and ultrasonic waves transducer, select a kind of mode transmission signals (for example ultrasonic waves mode) when, when wishing to be transformed to another kind of mode transmission signals (for example infrared mode), then must change circuit.So the user must select to wish to transmit the mode of signal earlier, designs the circuit of transmission carrier frequency again, so cause difficulty on circuit design.
Because the disappearance of above-mentioned prior art, so need a kind of device of adjusting ultrasonic waves and infrared ray carrier frequency emission.
Summary of the invention
The purpose of this invention is to provide a kind of device of adjusting ultrasonic waves and infrared ray carrier frequency emission, except the ultrasonic waves transducer that can be applicable to infrared light-emitting diode and different carrier frequencies, also can make the ultrasonic waves transducer launch the signal of varying strength and avoid around spurious signal disturb.According to the present invention, a kind of device of adjusting ultrasonic waves and infrared ray carrier frequency emission, comprise frequency divider, multiplexer, output buffer and infrared light-emitting diode or ultrasonic waves transducer, wherein frequency divider, multiplexer and output buffer are comprehensively to involve in the integrated circuit of infrared ray carrier frequency signal at changeable Supersonic, and this integrated circuit comprises nd carrier output and frequency of oscillation.Utilize frequency divider with the frequency of oscillation frequency division, be input to the input of multiplexer then, another input of multiplexer then receives the data output signal by user's control, and this binary signal can be involved data the first carrier output output of the integrated circuit of infrared ray carrier frequency signal again by changeable Supersonic via output buffer via multiplexer output.And the similar process of the process of the second carrier wave output outgoing carrier of integrated circuit and first carrier output port outgoing carrier, but the carrier wave that carrier wave that the second carrier wave output port is exported and first carrier output port are exported is anti-phase.Therefore, the present invention need not additionally to increase the carrier wave hardware circuit and reaches transmission infrared ray or supersonic purpose, makes the circuit of transmitting device be easier to and the integrated circuit comprehensive Design, and more convenient user selects infrared ray or ultrasonic waves as signal transmission form.
Description of drawings
From the detailed description below in conjunction with accompanying drawing, the professional and technical personnel can more be expressly understood the present invention, and above-mentioned and other purpose and advantage will become more obvious, wherein:
Fig. 1 is the circuit diagram that the signal transmission of expression a kind of integrated circuit of the prior art produces infrared ray or supersonic carrier signal generation device;
Fig. 2 is the circuit block diagram of expression one embodiment of the present of invention;
Fig. 3 is the detailed circuit diagram of expression one embodiment of the present of invention;
Fig. 4 is the detailed circuit diagram of expression an alternative embodiment of the invention; And
Fig. 5 is the signal waveform schematic diagram that expression changeable Supersonic of the present invention involves the integrated circuit 20 of infrared ray carrier frequency signal.
The reference numeral explanation
The integrated circuit of 10 control infrared rays or ultrasonic waves carrier signal
12 infrared light-emitting diodes or ultrasonic waves transducer
13 carrier wave hardware circuits
20 changeable Supersonics involve the integrated circuit of infrared ray carrier frequency signal
22 frequencies of oscillation
24 frequency dividers
26 inverters
28A, B data output signal DATA1, DATA2
30A, the B multiplexer
32A, the B output buffer
34A, B selects control signal
36A, B enable signal ENZ1, ENZ2
40 infrared light-emitting diodes
50 ultrasonic waves transducers
60,70 push-pull type output stages
202,204 circuit box
Embodiment
Fig. 2 represents the circuit block diagram of one embodiment of the present of invention, involve the integrated circuit 20 of infrared ray carrier frequency signal and at least one group of infrared light-emitting diode 40 or ultrasonic waves transducer 50 by a changeable Supersonic and formed, the integrated circuit 20 that wherein changeable Supersonic involves the infrared ray carrier frequency signal has two carrier wave output OUT 1 and OUT 2 and exports frequency of oscillation.The integrated circuit 20 that changeable Supersonic involves the infrared ray carrier frequency signal comprises can set different frequency divider 24 and circuit box 202 and 204 of removing value, frequency of oscillation 22 can obtain the carrier signal of different frequency behind this frequency divider 24, circuit box 202 and 204 then has identical structure, comprises multiplexer 30A and 30B and output buffer 32A and 32B respectively.The signal of being exported via circuit box 202 again through frequency divider 24 when frequency of oscillation 22 is by first carrier output OUT 1 signal to be exported; The signal of being exported via circuit box 204 again through frequency divider 24 when frequency of oscillation 22 is by the second carrier wave output OUT 2 signal to be exported.With first carrier output OUT 1, its outgoing carrier signal be by frequency of oscillation 22 utilize frequency divider 24 with frequency of oscillation 22 frequency divisions to produce required carrier wave, lasting carrier wave for example, be input to the input of multiplexer 30A then, another input of multiplexer 30A then receives the data output signal DATA1 28A by user's control, and this binary signal again can be with data by first carrier output OUT 1 output via output buffer 32A via multiplexer 30A output; And the carrier wave output procedure of the second carrier wave output OUT 2 and first carrier output port OUT 1 are roughly the same, have only the signal of this frequency of oscillation 22 behind frequency divider 24 frequency divisions to be connected to circuit box 204 differences through an inverter 26 earlier.So the carrier signal of the carrier signal of the second carrier wave output port OUT 2 and first carrier output port signal OUT 1 is anti-phase.
This nd carrier output OUT 1 and OUT 2 can be connected so that transmit with infrared light-emitting diode 40 or ultrasonic waves transducer 50 separately, as shown in Figure 2, also can connect an infrared light-emitting diode 40 or ultrasonic waves transducer 50 altogether and transmit, as shown in Figure 4.
Fig. 3 provides the detailed circuit diagram of one embodiment of the present of invention.Multiplexer 30A includes crystal oscillator and by a signal of selecting control signal MODE1 34A control output, when selecting control signal MODE1 34A to be 0, multiplexer 30A then exports data output signal DATA1 28A; When selecting control signal MODE1 34A to be 1, then multiplexer 30A will be through the carrier wave FRE output of frequency divider 24 frequency divisions.Output buffer 32A includes numerical digit logical circuit and push-pull type output stage, and it receives the output signal of multiplexer 30A, and this signal is involved the first output OUT, 1 output of the integrated circuit 20 of infrared ray carrier frequency signal by changeable Supersonic.When enable signal ENZ1 36A was 0, output buffer 32A was normal output state, and when enable signal ENZ1 36A is 1, and then output buffer 32A just closes path and exports as impedance.
Multiplexer 24B is an output signal of selecting control signal MODE2 34B control output end by one, and when selecting control signal MODE2 34B to be 0, multiplexer 24B then exports data output signal DATA228B; When selecting control signal MODE2 34B to be 1, then multiplexer 30B will export through the carrier wave FRE of the frequency divider 24 frequency divisions signal after inverter 26 is anti-phase.Output buffer 32B receives multiplexer 30B output signal afterwards, and this signal is involved the second output port OUT, 2 outputs of the integrated circuit 20 of infrared ray carrier frequency signal by changeable Supersonic.When enable signal ENZ2 36B was 0, output buffer 32B was normal output state, and when enable signal ENZ2 36B is 1, and then output buffer 32B just closes path and exports as impedance.
Fig. 4 is the detailed circuit diagram of an alternative embodiment of the invention, and it is the input that carrier wave FRE signal is input to a push-pull type output stage 60 respectively, and through the anti-phase input that is sent to another push-pull type output stage 70 to device 26 again.This two push-pull types output stage 60 and 70 output connect infrared light-emitting diode 40 or ultrasonic waves transducer 50 altogether.Therefore, changeable Supersonic is involved the infrared ray carrier frequency signal integrated circuit 20 nd carrier output OUT 1 and OUT 2 connects an infrared light-emitting diode 40 altogether or ultrasonic waves transducer 50 transmits, the structure that forms a push-pull type (push-pull) is to drive infrared light-emitting diode 40 and ultrasonic waves transducer 50.
Fig. 5 is the signal waveforms that changeable Supersonic involves the integrated circuit 20 of infrared ray carrier frequency signal.In (A) figure, when selecting control signal MODE1 and MODE2 34A and 34B to be fixed as 0, changeable Supersonic involves the nd carrier output port OUT1 and the OUT 2 output binary bit signals of the integrated circuit 20 of infrared ray carrier frequency signal, uses so can be used as the general data end.In (B) figure, when selecting control signal MODE1 and MODE2 34A and 34B is that carrier wave output signal and data output signal DATA1 and DATA2 28A and 28B are fixed as 0, then changeable Supersonic involves the nd carrier output port OUT 1 of integrated circuit 20 of infrared ray carrier frequency signal and the signal of OUT 2 output device carrier waves, so can use for infrared light-emitting diode 40 or ultrasonic waves transducer 50.In (C) figure, when selecting control signal MODE1 and MODE2 34A and 34B is that carrier wave output signal and data output signal DATA1 and DATA2 28A and 28B are when being fixed as 1, then changeable Supersonic involves the nd carrier output port OUT 1 of integrated circuit 20 of infrared ray carrier frequency signal and the signal of OUT 2 output device carrier waves, so can use for infrared light-emitting diode 40 or ultrasonic waves transducer 50.
Therefore, the present invention has the infrared diode of generation or supersonic carrier signal and general input/output signal, and then reaches numerous functions uses.And select control signal MOD 1 and MODE2 34A and 34B, data output signal DATA1 and the DATA2 28A and 28B and carrier wave FRE can be according to user's needs combination, even the frequency of carrier wave FRE, intensity and work period (duty cycle) all can be and adjust according to various considerations such as the host-host protocol of infrared light-emitting diode or ultrasonic waves transducer or employed element materials, make the circuit of ultrasonic waves transmitting device combine design with integrated circuit easily, and then promote operating efficiency and reduce cost.
More than the description done for the preferred embodiments of the present invention only be for illustrative purposes, and and unrestricted the present invention accurately be disclosed form, based on above instruction or to learn and modify or change from embodiments of the invention be possible.For the professional and technical personnel, under the situation that does not break away from the protection range that limits by appended claims, still can make various modifications or change, but protection scope of the present invention is limited by claims.
Claims (10)
1. the device that can adjust the emission of ultrasonic waves and infrared ray carrier frequency is characterized in that comprising: frequency divider, to provide frequency of oscillation of input and with described frequency of oscillation frequency division, to produce a ultrasonic wave or ultrared carrier signal; Multiplexer is imported carrier signal and data output signal that described frequency divider produces to provide, and selects control signal to control the carrier signal of exporting described data output signal or being loaded with described data output signal via one; Output buffer is connected with described multiplexer, to export described data output signal or to be loaded with the carrier signal of described data output signal; And infrared light-emitting diode or ultrasonic transducers, be connected emission infrared ray or ultrasonic waves carrier signal when the described carrier signal that is loaded with described data output signal of described buffer output with described output buffer.
2. device as claimed in claim 1 comprises that also at least one can produce the output port of ultrasonic waves carrier signal.
3. device as claimed in claim 1 comprises that also at least one can produce the output port of infra-red carrier signal.
4. device as claimed in claim 1 also comprises two output ports that can produce ultrasonic waves or infra-red carrier signal, and the output signal of described two carrier signal output ports is anti-phase.
5. device as claimed in claim 4, wherein said two output ports that can produce ultrasonic waves or infra-red carrier signal, when ultrasonic waves transducer of common driving or infrared light-emitting diode, form a kind of push-pull type structure to drive described ultrasonic waves transducer or infrared light-emitting diode.
6. the integrated circuit (IC) apparatus that can adjust the emission of ultrasonic waves and infrared ray carrier frequency is characterized in that comprising:
Frequency divider is to provide frequency of oscillation of input and with described frequency of oscillation frequency division, to produce a ultrasonic wave or ultrared carrier signal;
Multiplexer is to provide the input carrier signal that described frequency divider produces and data output signal and to select control signal with the control described data output signal of output or be loaded with the carrier signal of described data output signal via one; And
Output buffer is connected with described multiplexer, to export described data output signal or to be loaded with the carrier signal of described data output signal.
7. device as claimed in claim 6 comprises that also at least one can produce the output port of ultrasonic waves carrier signal.
8. device as claimed in claim 6 comprises that also at least one can produce the output port of infra-red carrier signal.
9. device as claimed in claim 6 also comprises two output ports that can produce ultrasonic waves or infra-red carrier signal, and the output signal of described two carrier signal output ports is anti-phase.
10. device as claimed in claim 9, wherein said two output ports that can produce ultrasonic waves or infra-red carrier signal, when ultrasonic waves transducer of common driving or infrared light-emitting diode, form a kind of push-pull type structure to drive described ultrasonic waves transducer or infrared light-emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011408731A CN1193520C (en) | 2001-09-25 | 2001-09-25 | Apparatus capable of regulating ultrasonic wave and infrared ray carrier frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011408731A CN1193520C (en) | 2001-09-25 | 2001-09-25 | Apparatus capable of regulating ultrasonic wave and infrared ray carrier frequency |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1411164A CN1411164A (en) | 2003-04-16 |
| CN1193520C true CN1193520C (en) | 2005-03-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011408731A Expired - Fee Related CN1193520C (en) | 2001-09-25 | 2001-09-25 | Apparatus capable of regulating ultrasonic wave and infrared ray carrier frequency |
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| Country | Link |
|---|---|
| CN (1) | CN1193520C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101674082B (en) * | 2008-09-11 | 2012-07-04 | 奇景光电股份有限公司 | Clock generating device and clock generating method |
| JP5289986B2 (en) * | 2009-01-20 | 2013-09-11 | 株式会社オーディオテクニカ | Infrared transmitter |
| TWI563497B (en) * | 2015-03-31 | 2016-12-21 | Merry Electronics Co Ltd | Recovery method and device for close range acoustic wave |
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2001
- 2001-09-25 CN CNB011408731A patent/CN1193520C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1411164A (en) | 2003-04-16 |
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