WO2016110887A1 - マイクロホン用マイクロコンピュータ - Google Patents
マイクロホン用マイクロコンピュータ Download PDFInfo
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- WO2016110887A1 WO2016110887A1 PCT/JP2015/005733 JP2015005733W WO2016110887A1 WO 2016110887 A1 WO2016110887 A1 WO 2016110887A1 JP 2015005733 W JP2015005733 W JP 2015005733W WO 2016110887 A1 WO2016110887 A1 WO 2016110887A1
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- WIPO (PCT)
- Prior art keywords
- program
- address
- microphone
- register
- microcomputer
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/001—Analogue/digital/analogue conversion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic
Definitions
- the present invention relates to a microphone microcomputer that executes a plurality of application programs.
- microphones that can obtain various directivity characteristics by adjusting the distance between the elements of each microphone, amplitude, phase, delay amount, etc. during signal synthesis (directivity characteristic switching microphones) )It has been known.
- microphone directivity include omnidirectionality, bidirectionality, unidirectionality, and narrow directivity. These directivity characteristics are preferably selected for each sound collection scene in consideration of the position of the object to be picked up and the unintended sound field.
- the microcomputer includes, for example, a microphone element, an amplifier, an analog-to-digital converter (ADC), a digital signal processing circuit (DSP: Digital Signal Processor), and a digital-to-analog converter circuit (DAC: Digital to Analog Converter).
- ADC analog-to-digital converter
- DSP Digital Signal Processor
- DAC Digital to Analog Converter
- Patent Document 1 discloses a one-chip microcomputer that can handle a plurality of application programs.
- the one-chip microcomputer of Patent Document 1 sets a difference value between the start address of the application program and a predetermined reference address, The application program is executed based on the difference value.
- the CPU can execute the application program without considering a different address for each application program in which each application program is arranged.
- An object of the present invention is to provide a microcomputer for a microphone that can execute an application program more effectively without considering a different address for each application program.
- a microphone microcomputer includes an input amplifier that amplifies an analog signal from a microphone, an analog-digital conversion circuit that converts an analog signal output from the input amplifier into a digital signal, and the analog-digital conversion.
- a digital signal processing circuit that processes a digital signal output from the circuit, a digital-analog conversion circuit that converts the digital signal output from the digital signal processing circuit into an analog signal, and an analog signal output from the digital-analog conversion circuit
- An output amplifier that outputs the analog signal to a speaker, a program memory that stores a plurality of microphone programs executed by the digital signal processing circuit, and an address control circuit that controls an address of the program memory
- a program address register for storing the address of the microphone program, and a program size register for storing the size of the microphone program, wherein the address control circuit is based on the program address register and the program size register.
- the configuration for calculating the address of the program memory is adopted.
- the application program can be executed more effectively without considering a different address for each application program.
- the block diagram which shows an example of a structure of the microcomputer for microphones concerning embodiment of this invention The figure which shows an example of the memory map of the program memory of the microcomputer for microphones concerning embodiment of this invention
- the figure which shows an example of the register map of the program address register of the microcomputer for microphones concerning embodiment of this invention The figure which shows an example of the register map of the program size register of the microcomputer for microphones concerning embodiment of this invention
- FIG. 1 is a block diagram illustrating a configuration example of the microcomputer 100.
- the microcomputer 100 is connected to a microphone 101 and a speaker 107.
- the microcomputer 100 includes an input amplifier 102, an analog / digital conversion circuit (ADC) 103, a digital signal processing circuit (DSP) 104, a digital / analog conversion circuit (DAC) 105, and an output amplifier 106. .
- ADC analog / digital conversion circuit
- DSP digital signal processing circuit
- DAC digital / analog conversion circuit
- the microphone 101 converts sound into an electric signal and outputs the electric signal (hereinafter referred to as an analog signal) to the input amplifier 102.
- an analog signal hereinafter referred to as an analog signal
- two microphones 101 are provided as an example.
- the input amplifier 102 amplifies the analog signal output from the microphone 101 and outputs the analog signal to the analog-digital conversion circuit 103.
- the input amplifier 102 amplifies the analog signal output from the microphone 101 and outputs the analog signal to the analog-digital conversion circuit 103.
- two input amplifiers 102 are provided corresponding to the two microphones 101.
- Analog-digital conversion circuit (ADC) 103 converts the analog signal output from input amplifier 102 into a digital signal and outputs the digital signal to digital signal processing circuit 104.
- ADC Analog-digital conversion circuit
- two analog-digital conversion circuits 103 are provided corresponding to two microphones 101 and two input amplifiers 102.
- the digital signal processing circuit (DSP) 104 processes a digital signal output from the analog-digital conversion circuit 103 by executing a microphone program (application program) described later, and outputs the digital signal to the digital-analog conversion circuit 105.
- the digital-analog conversion circuit (DAC) 105 converts the digital signal output from the digital signal processing circuit 104 into an analog signal and outputs the analog signal to the output amplifier 106.
- the output amplifier 106 amplifies the analog signal output from the digital-analog conversion circuit 105 and outputs the analog signal to the speaker 107.
- the speaker 107 converts the analog signal output from the output amplifier 106 into sound.
- the microcomputer 100 includes a program memory 108, an address control circuit 109, a program address register 110, and a program size register 111.
- the program memory 108 stores a plurality of microphone programs (see FIG. 2) executed by the digital signal processing circuit 104 in advance.
- the program memory 108 may be, for example, a ROM (Read Only Memory), a large capacity non-volatile memory such as a flash memory, an EEPROM (Electrically Erasable Programmable Read-Only Memory), or the like. Other storage devices may be used.
- the program address register 110 stores in advance the address of each microphone program (see FIG. 3).
- the program size register 111 stores the size of each microphone program (see FIG. 4) in advance.
- the address control circuit 109 reads the program address register 110 and the program size register 111, calculates the start address of the program memory 108 based on them, and writes the start address to the program address register 110. Thereafter, the address control circuit 109 reads the head address of the program memory 108 written in the program address register 110 and outputs the head address to the digital signal processing circuit 104. Accordingly, the digital signal processing circuit 104 reads the microphone program at the head address output from the address control circuit 109 from the program memory 108 and executes the microphone program.
- FIG. 2 is a diagram illustrating an example of a memory map of the program memory 108.
- the program memory 108 stores a plurality of microphone programs (application programs) executed by the digital signal processing circuit 104 in advance. As shown in FIG. 2, the program memory 108 stores, for example, a program 1, a program 2, a program 3, a program 4, and a program 5.
- FIG. 2 shows that the first address of program 1 is address 1 (reference address) and the program size of program 1 is size 1.
- FIG. 2 also shows that the start address of program 2 is address 2 and the program size of program 2 is size 2.
- FIG. 2 also shows that the start address of program 3 is address 3 and the program size of program 3 is size 3.
- FIG. 2 shows that the start address of the program 5 is the address 5 and the program size of the program 5 is size 5.
- FIG. 3 is a diagram illustrating an example of a register map of the program address register 110.
- the program address register 110 stores a plurality of microphone program addresses in advance. As shown in FIG. 3, the program address register 110 includes, for example, an address 1 that is the start address of the program 1, an address 2 that is the start address of the program 2, an address 3 that is the start address of the program 3, and a start address of the program 4 And address 5 which is the head address of the program 5 are stored.
- FIG. 4 is a diagram illustrating an example of a register map of the program size register 111.
- the program size register 111 stores program sizes of a plurality of microphone programs in advance. As shown in FIG. 4, the program size register 111 has a size 1 that is the program size of the program 1, a size 2 that is the program size of the program 2, a size 3 that is the program size of the program 3, and a program size of the program 4. Size 4 is stored.
- FIG. 5 is a flowchart showing an example of the processing operation of the address control circuit 109.
- the address control circuit 109 reads the program address register 110 (step S501). For example, the addresses 1 to 5 of the program address register 110 are read.
- the address control circuit 109 reads the program size register 111 (step S502). For example, the sizes 1 to 4 of the program size register 111 are read.
- the address control circuit 109 calculates the start address of the program memory 108 based on the addresses 1 to 5 of the program address register 110 and the sizes 1 to 4 of the program size register 111 (step S503).
- the address control circuit 109 determines the address 1 of the program address register 110 as it is.
- the address control circuit 109 adds the address 1 of the program address register 110 and the size 1 of the program size register 111 and determines the addition result as the address 2.
- the address control circuit 109 adds the address 2 of the program address register 110 and the size 2 of the program size register 111 and determines the addition result as the address 3.
- the address control circuit 109 adds the address 3 of the program address register 110 and the size 3 of the program size register 111 and determines the addition result as the address 4.
- the address control circuit 109 adds the address 4 of the program address register 110 and the size 4 of the program size register 111 and determines the addition result as the address 5.
- the address control circuit 109 determines addresses 1 to 5 as the head address of the program memory 108.
- the address control circuit 109 writes the determined address of the program memory 108 in the program address register 110 (step S504). For example, addresses 1 to 5 determined by the calculation process are written. As a result, the program address register 110 is updated.
- the address control circuit 109 reads the head address (for example, addresses 1 to 5) of the program memory 108 written in the program address register 110 and outputs it to the digital signal processing circuit 104.
- the digital signal processing circuit 104 reads out the microphone program based on the head address of the program memory 108 output from the address control circuit 109, and executes the read microphone program.
- the digital signal processing circuit can execute the application program more effectively without considering different addresses for each application program.
- each application program can be independently developed without considering the address at which each application program is arranged on the microcomputer, and complicated when arranging each application program on the microcomputer. Mapping work does not occur.
- the present invention relates to a change of an application program in microphone directivity switching, and can be used for a microphone microcomputer having a built-in digital signal processing circuit (DSP) that stores a plurality of application programs in a built-in memory and executes them. is there.
- DSP digital signal processing circuit
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Circuit For Audible Band Transducer (AREA)
- Stored Programmes (AREA)
- Reverberation, Karaoke And Other Acoustics (AREA)
Abstract
Description
101 マイクロホン
102 入力アンプ
103 アナログデジタル変換回路(ADC)
104 デジタル信号処理回路(DSP)
105 デジタルアナログ変換回路(DAC)
106 出力アンプ
107 スピーカ
108 プログラム用メモリ
109 アドレス制御回路
110 プログラムアドレスレジスタ
111 プログラムサイズレジスタ
Claims (7)
- マイクロホンからのアナログ信号を増幅する入力アンプと、
前記入力アンプから出力されたアナログ信号をデジタル信号に変換するアナログデジタル変換回路と、
前記アナログデジタル変換回路から出力されたデジタル信号を処理するデジタル信号処理回路と、
前記デジタル信号処理回路から出力されたデジタル信号をアナログ信号に変換するデジタルアナログ変換回路と、
前記デジタルアナログ変換回路から出力されたアナログ信号を増幅し、該アナログ信号をスピーカに出力する出力アンプと、
前記デジタル信号処理回路により実行されるマイクロホン用プログラムを複数格納するプログラム用メモリと、
前記プログラム用メモリのアドレスを制御するアドレス制御回路と、
前記マイクロホン用プログラムのアドレスを格納するプログラムアドレスレジスタと、
前記マイクロホン用プログラムのサイズを格納するプログラムサイズレジスタと、を備え、
前記アドレス制御回路は、
前記プログラムアドレスレジスタおよび前記プログラムサイズレジスタに基づいて、前記プログラム用メモリのアドレスを計算する、
マイクロホン用マイクロコンピュータ。 - 前記プログラム用メモリは、
前記マイクロホン用プログラムをあらかじめ複数格納している、
請求項1に記載のマイクロホン用マイクロコンピュータ。 - 前記プログラムアドレスレジスタは、
前記マイクロホン用プログラムのアドレスをあらかじめ格納している、
請求項2に記載のマイクロホン用マイクロコンピュータ。 - 前記プログラムサイズレジスタは、
前記マイクロホン用プログラムのサイズをあらかじめ格納している、
請求項2に記載のマイクロホン用マイクロコンピュータ。 - 前記アドレス制御回路は、
前記プログラムアドレスレジスタに格納されている前記マイクロホン用プログラムのアドレスと、前記プログラムサイズレジスタに格納されている前記マイクロホン用プログラムのサイズとを加算することで、前記プログラム用メモリのアドレスを計算する、
請求項2に記載のマイクロホン用マイクロコンピュータ。 - 前記アドレス制御回路は、
計算した前記プログラム用メモリのアドレスを、前記プログラムアドレスレジスタに書き込む、
請求項5に記載のマイクロホン用マイクロコンピュータ。 - 前記アドレス制御回路は、
前記プログラムアドレスレジスタに書き込んだ前記プログラム用メモリのアドレスを読み出して前記デジタル信号処理回路に出力し、
前記デジタル信号処理回路は、
前記アドレス制御回路から出力されたプログラム用メモリのアドレスに基づいて、前記プログラム用メモリから前記マイクロホン用プログラムを読み出して実行する、
請求項6に記載のマイクロホン用マイクロコンピュータ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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CN201580050287.1A CN106716366A (zh) | 2015-01-07 | 2015-11-17 | 话筒用微型计算机 |
JP2016568169A JP6233619B2 (ja) | 2015-01-07 | 2015-11-17 | マイクロホン用マイクロコンピュータ |
US15/508,271 US20170288689A1 (en) | 2015-01-07 | 2015-11-17 | Microcomputer for microphone |
EP15876768.1A EP3244308A4 (en) | 2015-01-07 | 2015-11-17 | Microcomputer for microphone |
Applications Claiming Priority (2)
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JP2015001671 | 2015-01-07 | ||
JP2015-001671 | 2015-01-07 |
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WO2016110887A1 true WO2016110887A1 (ja) | 2016-07-14 |
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PCT/JP2015/005733 WO2016110887A1 (ja) | 2015-01-07 | 2015-11-17 | マイクロホン用マイクロコンピュータ |
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US (1) | US20170288689A1 (ja) |
EP (1) | EP3244308A4 (ja) |
JP (1) | JP6233619B2 (ja) |
CN (1) | CN106716366A (ja) |
WO (1) | WO2016110887A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07177595A (ja) * | 1991-07-26 | 1995-07-14 | Technol Res Assoc Of Medical & Welfare Apparatus | 音響入力装置 |
JP2006157935A (ja) * | 2001-01-25 | 2006-06-15 | Toshiba Corp | 複数の無線通信システムに対応可能な無線通信装置 |
JP2012252240A (ja) * | 2011-06-06 | 2012-12-20 | Sony Corp | 再生装置、信号処理装置、信号処理方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2681929B2 (ja) * | 1987-06-22 | 1997-11-26 | 三菱電機株式会社 | プログラム起動方式 |
CN101079265B (zh) * | 2007-07-11 | 2011-06-08 | 无锡中星微电子有限公司 | 一种语音信号处理系统 |
WO2011159263A1 (en) * | 2010-06-15 | 2011-12-22 | The Thailand Research Fund | Embedded system providing bootloader selected execution of multiple independent modular programs |
-
2015
- 2015-11-17 WO PCT/JP2015/005733 patent/WO2016110887A1/ja active Application Filing
- 2015-11-17 JP JP2016568169A patent/JP6233619B2/ja active Active
- 2015-11-17 CN CN201580050287.1A patent/CN106716366A/zh active Pending
- 2015-11-17 EP EP15876768.1A patent/EP3244308A4/en not_active Withdrawn
- 2015-11-17 US US15/508,271 patent/US20170288689A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07177595A (ja) * | 1991-07-26 | 1995-07-14 | Technol Res Assoc Of Medical & Welfare Apparatus | 音響入力装置 |
JP2006157935A (ja) * | 2001-01-25 | 2006-06-15 | Toshiba Corp | 複数の無線通信システムに対応可能な無線通信装置 |
JP2012252240A (ja) * | 2011-06-06 | 2012-12-20 | Sony Corp | 再生装置、信号処理装置、信号処理方法 |
Non-Patent Citations (1)
Title |
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See also references of EP3244308A4 * |
Also Published As
Publication number | Publication date |
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JPWO2016110887A1 (ja) | 2017-08-10 |
EP3244308A4 (en) | 2018-01-17 |
US20170288689A1 (en) | 2017-10-05 |
EP3244308A1 (en) | 2017-11-15 |
JP6233619B2 (ja) | 2017-11-22 |
CN106716366A (zh) | 2017-05-24 |
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