TW200412177A - Battery-free wireless microphone device and transmission method - Google Patents

Abstract

A battery-free wireless microphone device includes: a microphone including a sound receiving unit for receiving a sound signal; a sampling circuit unit connected to the sound receiving unit for sampling the sound signal; a modulator connected to the sampling circuit unit for modulating the sampled sound signal and a carrier signal to obtain an output signal; an antenna connected to the modulator for transmitting the output signal and receiving an electromagnetic wave signal; and a power supply unit connected to the above devices for converting the electromagnetic wave signal into electrical energy for being supplied to the above devices to work; and a processor for transmitting the electromagnetic wave signal, receiving the output signal, demodulating the output signal, and amplifying the sound for subsequent processing. A battery-free wireless microphone transmission method includes the steps of: (A) using the processor to transmit the electromagnetic wave signal; (B) utilizing the antenna to receive the electromagnetic wave signal; ?using the power supply unit to convert the electromagnetic wave signal into electrical energy capable of being utilized by the microphone; and (D) using the microphone to capture the sound signal for being transmitted to the processor.

Description

200412177 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a battery-less wireless wheat transmission method, especially a method provided by using a radio frequency barcode tag (radio, ”identifying tag). No-transmission method of power supply. Evening wind device and [previous technology] With the popularization of technology, the use of wireless microphones has become increasingly widespread in many places such as classrooms, stages, and KTVs.-Youpen: The development of technology ' Advances in wireless transmission technology; more: 加上 'coupled with its ease of use, has gradually replaced the strict line microphone plugged on the other side of Mike Si' market. There are two types. One is handheld wireless + + ± 疋 attached (Hidden) wireless microphone 2. Handheld wireless microphones are found in places such as m, see Figure _ =. The structure of the wireless microphone is mainly composed of a sound receiver for receiving a sound signal and a signal. A processor 丨 2 for processing the sound signal 'and an antenna 14 to send it there;-a power supply 15 to provide the above-mentioned components to work ;; 2 2 = The source supplier consists of 3 to 4 dry batteries connected in series to provide power to hang in 3 units. \: It is fixedly attached to the above components. 3- Kinds of structure with wireless wheat wind 2 '° See Figure f' This It is a hanging structure 1 ^. The main structure is: a sound receiver 21, receiving sound signals, a body 22, and a signal processor.

Page 5 200412177 V. Description of the invention (2) 222, which is used to process the received voice and the processed audio signal, and the antenna "and an antenna 224 'and two power supply units 225, to provide the above mentioned connection :: : Electric power, usually the power supply 225 is composed of two dry battery strings. Two: and a lead 23 'to connect the sound receiver 21 to the —f power. Here is to provide the sound receiver 21 and to pass the received sound into the body. "On the belt or mouth", the lead 23, the microphone 2 and the receiving receiver 21 are usually clipped on the collar or clothes. This kind of wireless yoke style 2 is seen in classrooms, stages and other occasions. Come to adjust the wireless microphone to use dry batteries as a source of electrical energy. "Due to the weight and volume of the dry battery itself, the helmet line microphone M 2 volume and weight helmet method shrinks, and, now, a battle, ... The recording cage door θ§ 'To reduce or reduce if the attached wireless microphone 2 needs to be wound.' There is also a variant of the attached wireless microphone 2, even if it is a straight pool, so the sound receiver 21 and the body 22 are No need to guide, you can check 5,1 ^ The attached wireless microphone 2 can be directly attached to the jacket 'Da' J to reduce the size of the smaller volume, but = source: short continuity, * environmental protection issues The circuit that needs to be replaced = f is inconvenient to use. In fact, the above two problems of wireless microphones are achieved, and the convenience of use is increased. [Summary of the invention] The main purpose of wearing a microphone is to provide a battery-free wireless Microphone J1 device and transmission method. In order to achieve the above purpose, the present invention provides a battery-free wireless microphone 200412177 V. Description of the invention (3) The wind device includes: a microphone section, and further includes: a sound Pick up Unit to receive the sound signal; a sampling circuit unit is connected to the sound receiving unit, and the sound number is sampled (samp 1 i ng); σ-modulator 'is connected to the sampling circuit unit, after the sampling The sound is modulated with the carrier signal to get the _wheel-out signal;-a 1 'magnetic wave signal a day; and a ferroelectric power supply unit that connects the above components and turns it into electrical energy to supply the above-mentioned wave The power of escaping the work of the hundreds of components. And a processing unit: send the electromagnetic wave signal, receive the output signal for-demodulation and put the sound ^, and the wireless microphone transmission method of this and a free t-cell. Code technology is applied to a wireless microphone. The wireless microphone is a radio frequency power supply unit. The method includes an antenna and

BC transmits the electromagnetic wave signal through the processing device; · The wire receives the electromagnetic wave signal; and the available electrical energy form is converted by the source supply unit; the microphone is converted to the microphone D: after the microphone extracts the sound signal, the value is 1 You can't get enough of this treatment.

200412177 V. Description of the invention (4) [Embodiment] In order for your review committee to have a better understanding and understanding of the features, purposes and functions of the present invention, the detailed description with the drawings is as follows: The principle of the present invention is to use radio frequency Barcode tagging (radio frequency identi fy ing tag) method to provide power source. Radio frequency identification tag technology has been widely used in warehouse management and personnel control. The related patents are Announcement Nos. 496094 and 4 2 2 10. The principle of its function is as follows: Take the personnel control as an example. At the control point such as the gate or vault door, a sensor will be installed. The sensor emits electricity and waves. The person will carry a control card. When the person needs to enter or exit, f will The Hai Li business card is close to the sensor of 5 Hai, and the electromagnetic wave emitted by the sensor can be converted to the identification data built in the control card to the sensor for identification. Please refer to FIG. 3, which is a structural diagram of the present invention. . The invention includes 2 wind sections 3, t includes: a sound receiving unit ", to receive a :: tiger; a sampling circuit unit 32, connected to the sound receiving unit the sound letter (SamPUng);-Modulation 调, Connect the sampling circuit unit 32, the sampled sound signal and a π [get-output signal; an antenna 34 change: wide m this output 并可, and can receive-electromagnetic wave signal; source 2 Z 70 5, connect the above Each element, and use this electromagnetic wave as the electric energy of f, the electric power for the μ, +, and v 丄 electric male to turn into a device 351, change all: change: the power of the element's work 'including also- The rectified (D0 mode Λ Λ can be adjusted from AC mode to DC ^ charge capacitor 352, store the DC mode energy, and

Page 8 T * ·. 200412177 V. Description of the invention (5) Send electrical energy to each element; and No. 1, receive the output signal, and send 电磁 = 4 to send the electromagnetic wave signal to convert the electromagnetic energy from the electromagnetic wave to be limited, ^ = The signal is output for subsequent processing. Due to the structure of the road, electric energy has been used. The above circuit components should be integrated: refer to Figure 4. This is step 51 of this issue. The source of medium power is emitted by electromagnetic ns-electromagnetic wave signal 1 ·· The present invention is an electromagnetic wave emission device, and the electromagnetic environment = t must exist in the use environment to receive the microphone 1 M electromagnetic wave t radiation device of the invention can also be connected at the same time: processing device Including the above functions. 1 After the work, "To be processed" Needed: Use the antenna to receive the electromagnetic wave signal; • Ke Fengbu eight uses. Receive the electromagnetic waves in the environment, and put them into the circuit to ^^ Mai Mai 5 2 12 The The power supply unit converts this electromagnetic wave signal into the form of electrical energy used by b. The form of electrical energy derived from electromagnetic waves cannot be used in general circuits. Therefore, it must be used to convert the rectifier into a direct current (DC) form before sending it to other parties. Step 54 'After the microphone captures the sound signal, it is transmitted to the device. The detailed processing steps are as follows: ... Step 541: Capture a sound signal; Step 542: Sampling the sound signal; Step 543: the The sampled sound signal is modulated with a carrier frequency to generate an output signal; Step 544: transmitting the outgoing signal.

Page 9 200412177 V. Description of the invention (6): Refer to FIG. 5 'This is another embodiment of the present invention. This ^ includes the sound receiving unit of the microphone section as described above. 3 = = transformer 33, antenna 34, power supply The supply unit 35 and the processing unit have 4 channels of early-frequency selection 37 1-carrier solution; and-the oscillator office receives the money rate selector 37 and the modulator 33 to generate the carrier signal of the carrier frequency: kg =. In the previous embodiment, the limit of 2 used is the same frequency as the electromagnetic wave signal, but in addition to the frequency selection ^ 37 ^ 4 earthquake | @ 38 后 'You can select a suitable frequency via the frequency selector 37' ^ = The carrier frequency corresponding to the carrier frequency. In this way, with carriers of different frequencies, it is possible to: 稷 Several users use the wireless microphone at the same place at the same time. Please refer to FIG. 6 for a schematic package diagram of the present invention. The present invention further includes-a soft rubber plate 39 ′, which is used to fix and support the components of the microphone unit. Since the sound receiving unit 31, the sampling circuit unit 32 and the modulation circuit 33 are packaged in an integrated circuit 30, the volume occupied is not large. According to Zhao = other technologies, such as the use of condenser microphones, that is, plastic soft board "tongue antenna 34 and integrated circuit 30 parts (shown by solid lines), plastic soft board 3 y /, and 5 cm The size of the square is such that a plastic soft board of this size can be easily attached to the neckline, coupled with a sound receiving unit 3 1 sandwiched on the shirt to capture sound signals, and a processing device 4 emits electromagnetic wave signals. The user can Very light to use. In another embodiment, the sound receiving 3 ^ single, using micro-electro-mechanical technology, into the circuit (shown in dotted lines), so that only about two-thirds of the area of plastic credit card The flexible board 39 can contain the required components. Just attach the plastic flexible board 39 to the appropriate body

Page 10 i-pk. 200412177 V. Description of the invention (7)

Parts that are ready to use. For example, if the stupid A does not need to wear another ear show, the singer and actor are not afraid to hinder the performance, and the embarrassment of the transmitter is hidden in the costume. In the first place, there will be no costume drama wearing Mike Xifang ^ The above mentioned is only a preferred embodiment of the present invention, and it should not be used to limit the scope of the present invention. That is to say, all equal changes and modifications made in accordance with the scope of the patent application of the present invention will still not lose the essence of the present invention, nor depart from the spirit and scope of the present invention, so they should be regarded as the further implementation status of the present invention. ,

200412177 Schematic illustration [Schematic description] Figure 1 shows the structure of a handheld wireless microphone. Figure 2 shows the structure of a attached wireless microphone. Figure 3 shows the structure of the invention. Figure 4 shows the flowchart of the invention. Fig. 5 is another embodiment of the present invention. Fig. 6 is a schematic diagram of the package of the present invention. Description of the numbers: I-hand-held wireless microphone II-sound receiver 1 2-signal processor 1 4-antenna 15-power supply Device 1 9-housing part 2-attached (hidden) wireless microphone 2 1-sound receiver 2 2-body 222_ signal processor 2 2 4-antenna 2 2 5 _ power supply 23-wire 3- Microphone section 30-Integrated circuit

200412177 Brief description of the diagram 3 1-Sound receiving unit 32-Sampling circuit unit 3 3-Modulator 3 4-Antenna 3 5-Power supply unit 3 5 1-Rectifier 3 52-Charging capacitor 37-Frequency selector 38-Oscillation Device

39- Flexible plastic board 4-Processing unit 5 Bu 54-Steps of the method of the present invention 541-544-Sub-steps of step 54

Page 13

Claims (1)

200412177 VI. Scope of patent application 1. A battery-free wireless microphone device, comprising: a microphone section, further comprising: a sound receiving unit to receive a sound signal; a sampling circuit unit connected to the sound A receiving unit and sampling the sound 4 & 5 tigers. A § weekly change is connected to the side sampling circuit unit, and the sampled sound # is modulated with a carrier signal to obtain an output signal; an antenna, Connected to the modulator, transmitting the output signal, and receiving an electromagnetic wave signal; and a power supply unit TL, connecting the above-mentioned components, and converting the electromagnetic wave signal into electrical energy to supply electrical energy for the operation of all the components; and The processing unit L sends the electromagnetic wave signal, receives the output signal, performs a demodulation on the output signal, and amplifies the sound for subsequent processing. 2. The battery-free wireless microphone according to item 丨 of the patent application, where the sampling circuit unit can provide filtering to remove and miscellaneous 3. The battery-free wireless microphone according to item 丨 of the patent application The power supply unit includes: a line microphone farmer = modular: the electric energy is adjusted from an alternating current (AC) mode to a direct charger, stores the direct current mode power, and sends the power to the device. Cent% 4. As the scope of patent application! Battery-free wireless microphone device described in item Page 14 200412177 VI. The application of the patent scope includes: a frequency selector, which selects a carrier frequency; and an oscillator, which connects the frequency selector and the modulator to generate the corresponding wave frequency. The carrier signal. 5 · The battery-free wireless microphone device as described in item 4 of the scope of patent application can be used by multiple users at the same venue at the same time. 6. The battery-free wireless microphone device 'as described in item 1 of the scope of patent application shall be composed of integrated circuits to effectively use electrical energy. 7. A battery-free wireless microphone transmission method, the wireless microphone including an antenna and a power supply unit, the method includes the following steps: less AB, transmitting / electromagnetic wave signals through a processing device; using the antenna to receive the EM ##; the form of electrical energy that can be used by wind; _,% v ..., and D: after the microphone captures the sound signal, it is transmitted to the processing device, and the electromagnetic wave signal is converted into the Mike Jif Μ AI by the power supply unit * "· I '; TX ~ you, you can take your heart out. You can use the battery-free wireless microphone input method described in item 7 of the scope of patent application, where the power supply unit includes: A rectifier adjusts the converted electric energy from the AC mode to the DC mode; and charges the capacitor to store the electric energy in the DC mode and sends the electric energy to the item 0. 9 As stated in the patent scope of the seventh household The battery-free wireless microphone input method described above, in which C includes the following steps: 200412177 VI. Patent application scope " 1 C1: convert the electromagnetic wave signal into Utilized electric energy; and c 2: storing the DC mode electric energy and sending the electric energy to each component I. The battery-free wireless microphone 2 described in item 9 of the scope of patent application. The electric energy should be direct current (DC) ^ wind transmission energy. Qi gas electricity II · The battery-free wireless microphone bug wheel method described in item 7 of the scope of patent application, where D includes the following steps: Evening Wind D1: Capture a sound signal; D2: Sampling the sound signal; D3: Modulate the sampled sound signal with a carrier frequency to generate an output signal; and D4: Send the outgoing signal. 1 2 · The battery-free wireless microphone wheel method according to item 7 of the scope of the patent application, wherein the processing device can receive an output signal generated by the microphone and perform / demodulate and amplify the sound for subsequent production processes. ... '