JP6969366B2 - 無線通信機 - Google Patents
無線通信機 Download PDFInfo
- Publication number
- JP6969366B2 JP6969366B2 JP2017250535A JP2017250535A JP6969366B2 JP 6969366 B2 JP6969366 B2 JP 6969366B2 JP 2017250535 A JP2017250535 A JP 2017250535A JP 2017250535 A JP2017250535 A JP 2017250535A JP 6969366 B2 JP6969366 B2 JP 6969366B2
- Authority
- JP
- Japan
- Prior art keywords
- sensitivity level
- level
- vox
- unit
- vox sensitivity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
- H04M1/6041—Portable telephones adapted for handsfree use
- H04M1/605—Portable telephones adapted for handsfree use involving control of the receiver volume to provide a dual operational mode at close or far distance from the user
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/20—Circuits for coupling gramophone pick-up, recorder output, or microphone to receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/004—Monitoring arrangements; Testing arrangements for microphones
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- 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
- H04R3/007—Protection circuits for transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2410/00—Microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Environmental & Geological Engineering (AREA)
- Human Computer Interaction (AREA)
- Transceivers (AREA)
Description
2 A/D変換器
3 中央処理装置(CPU)
4 記憶部
5 送信部
6 受信部
7 アンテナ
31 送信判定部
32 バッファ
33 VOX感度レベル演算部
34 音声レベル比較部
35 受信判断部
36 経過時間計測部
37 VOX感度レベル選択部
100 無線通信機
Claims (2)
- 音声入力信号を変調してRF信号として送信する送信部と、
受信したRF信号を復調して音声出力信号として出力する受信部と、
マイクロホンが音声を収音することによって得られた音声入力信号のレベルとVOX感度レベルとを比較する音声レベル比較部と、
前記音声レベル比較部による比較結果に基づき、前記音声入力信号のレベルが前記VOX感度レベル以上であれば前記送信部に前記音声入力信号を送信するよう指示する送信判定部と、
前記受信部が音声出力信号の出力を終了する直前までの所定の期間に、前記マイクロホンが収音した周囲音に基づいて、前記VOX感度レベルとして、第1のVOX感度レベルと、前記第1のVOX感度レベルよりも低い第2のVOX感度レベルとを算出するVOX感度レベル演算部と、
前記受信部が音声出力信号の出力を完了した時点からの経過時間を計測する経過時間計測部と、
前記音声レベル比較部が前記音声入力信号のレベルと比較するVOX感度レベルとして、前記経過時間計測部が計測する経過時間が所定の時間に到達するまでは前記第2のVOX感度レベルを選択し、前記経過時間計測部が計測する経過時間が前記所定の時間を超えれば第1のVOX感度レベルを選択するVOX感度レベル選択部と、
を備えることを特徴とする無線通信機。 - 前記VOX感度レベル演算部は、
前記音声入力信号の予め設定した時間内のレベルの最大値から平均値を減算した減算値が閾値を超えていれば、前記平均値に所定のオフセット値を加算した加算値を前記第1のVOX感度レベルとし、
前記減算値が閾値を超えていなければ、前記最大値にオフセット値を加算した加算値を前記第1のVOX感度レベルとする
ことを特徴とする請求項1に記載の無線通信機。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017250535A JP6969366B2 (ja) | 2017-12-27 | 2017-12-27 | 無線通信機 |
US16/178,890 US10491732B2 (en) | 2017-12-27 | 2018-11-02 | Radio communication device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017250535A JP6969366B2 (ja) | 2017-12-27 | 2017-12-27 | 無線通信機 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019118000A JP2019118000A (ja) | 2019-07-18 |
JP6969366B2 true JP6969366B2 (ja) | 2021-11-24 |
Family
ID=66951581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017250535A Active JP6969366B2 (ja) | 2017-12-27 | 2017-12-27 | 無線通信機 |
Country Status (2)
Country | Link |
---|---|
US (1) | US10491732B2 (ja) |
JP (1) | JP6969366B2 (ja) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4160125A (en) * | 1977-05-23 | 1979-07-03 | Digital Products Corporation | Telephone polling apparatus |
US5563952A (en) * | 1994-02-16 | 1996-10-08 | Tandy Corporation | Automatic dynamic VOX circuit |
JP3919697B2 (ja) | 2003-05-21 | 2007-05-30 | 株式会社ケンウッド | Vox制御無線通信装置 |
US20170006395A1 (en) * | 2015-06-30 | 2017-01-05 | Motorola Solutions, Inc. | Bendable microphone |
-
2017
- 2017-12-27 JP JP2017250535A patent/JP6969366B2/ja active Active
-
2018
- 2018-11-02 US US16/178,890 patent/US10491732B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US10491732B2 (en) | 2019-11-26 |
US20190199843A1 (en) | 2019-06-27 |
JP2019118000A (ja) | 2019-07-18 |
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