CN112542175B - Method for improving call quality - Google Patents
Method for improving call quality Download PDFInfo
- Publication number
- CN112542175B CN112542175B CN202011329255.4A CN202011329255A CN112542175B CN 112542175 B CN112542175 B CN 112542175B CN 202011329255 A CN202011329255 A CN 202011329255A CN 112542175 B CN112542175 B CN 112542175B
- Authority
- CN
- China
- Prior art keywords
- voice
- data
- dect
- microphone
- conference system
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 42
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 239000013256 coordination polymer Substances 0.000 description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Mathematical Physics (AREA)
- Telephonic Communication Services (AREA)
Abstract
The invention provides a method for improving call quality, which comprises the following steps: the method comprises the steps that a DECT HS collects voice data through a plurality of built-in microphone devices, carries out analog-to-digital conversion and coding on the voice data to obtain voice coding data corresponding to each microphone, and simultaneously sends the voice coding data corresponding to each microphone to a DECT Base; the minimum transmission unit for transmitting the voice coding data consists of a plurality of slots, and the number of the slots is determined according to the total bit rate when the voice coding data corresponding to each microphone are transmitted simultaneously; said DECT HS has been registered on said DECT Base and has established a DECT call; decoding the voice coding data by the DECT Base to obtain PCM voice data, and transmitting the PCM voice data to a video conference system or a voice conference system; the video conference system or the voice conference system restores voice according to the PCM voice data. The embodiment of the invention can improve the call quality.
Description
Technical Field
The invention relates to the technical field of DECT, in particular to a method for improving call quality.
Background
The inventor finds in the study that, theoretically, more voice data are collected at the handle end of the DECT HS, namely, a plurality of microphones are adopted to collect voice data in different directions at the same time, and the coded voice data are sent to the Base station end of the DECT to improve the voice call quality, but due to the increase of the data quantity, the voice coded data are transmitted incompletely by adopting the existing minimum transmission unit, namely, one full slot/one long slot/one double slot, so that the voice distortion problem is caused. Therefore, how to overcome the above-mentioned drawbacks and improve the quality of the voice call is a technical problem to be solved.
Disclosure of Invention
The invention provides a method for improving call quality, which aims to solve the technical problem of voice distortion caused by incomplete voice coding data transmission when the conventional minimum transmission unit is adopted to transmit multi-microphone voice coding data.
In order to solve the above technical problems, in a first aspect, an embodiment of the present invention provides a method for improving call quality, including:
The method comprises the steps that a DECT HS collects voice data through a plurality of built-in microphone devices, carries out analog-to-digital conversion and coding on the voice data to obtain voice coding data corresponding to each microphone, and simultaneously sends the voice coding data corresponding to each microphone to a DECT Base; the minimum transmission unit for transmitting the voice coding data consists of a plurality of slots, and the number of the slots is determined according to the total bit rate when the voice coding data corresponding to each microphone are transmitted simultaneously; said DECT HS has been registered on said DECT Base and has established a DECT call;
Decoding the voice coding data by the DECT Base to obtain PCM voice data, and transmitting the PCM voice data to a video conference system or a voice conference system;
the video conference system or the voice conference system restores voice according to the PCM voice data.
Preferably, when the 16KHz voice data is simultaneously acquired through the built-in 3 microphones, the minimum transmission unit is composed of 4 slots or 2 long slots.
Preferably, the DECT Base transmits the PCM voice data to the videoconferencing system or the voice conferencing system via a USB data line.
Preferably, the video conference system and the voice conference system both include a host and a conference opposite terminal, and the video conference system or the voice conference system restores voice according to the PCM voice data, which specifically includes:
The host of the video conference system or the host of the voice conference system optimizes the PCM voice data by a voice algorithm, and sends the optimized voice data to the conference opposite terminal, and the conference opposite terminal restores the optimized voice data into voice.
In a second aspect, an embodiment of the present invention provides a method for improving call quality, applied to a DECT HS, including:
simultaneously collecting voice data through a plurality of built-in microphone devices;
performing analog-to-digital conversion and coding on the collected voice data to obtain voice coding data corresponding to each microphone;
Simultaneously transmitting voice coding data corresponding to each microphone to the DECT Base, so that the DECT Base decodes the voice coding data to obtain PCM voice data, and transmitting the PCM voice data to a video conference system or a voice conference system for the video conference system or the voice conference system to restore voice; the minimum transmission unit for transmitting the voice coding data consists of a plurality of slots, and the number of the slots is determined according to the total bit rate when the voice coding data corresponding to each microphone are transmitted simultaneously; the DECT HS is registered with the DECT Base and a DECT call has been established.
Preferably, when the 16KHz voice data is simultaneously acquired through the built-in 3 microphones, the minimum transmission unit is composed of 4 slots or 2 long slots.
In a third aspect, an embodiment of the present invention provides a method for improving call quality, applied to a DECT Base, including:
Receiving voice coding data corresponding to each microphone sent by the DECT HS at the same time; wherein the number of microphones is greater than or equal to 3; the minimum transmission unit for transmitting the voice coding data consists of a plurality of slots, and the number of the slots is determined according to the total bit rate when the voice coding data corresponding to each microphone are transmitted simultaneously; the voice coding data is obtained by carrying out analog-to-digital conversion and coding on voice data acquired by a microphone by the DECT HS;
Decoding the voice coding data to obtain PCM voice data;
And sending the PCM voice data to a video conference system or a voice conference system so as to enable the video conference system or the voice conference system to restore voice.
Preferably, when the 16KHz voice data is simultaneously acquired through the built-in 3 microphones, the minimum transmission unit is composed of 4 slots or 2 long slots.
In summary, the beneficial effects of the embodiment of the invention are as follows:
The embodiment of the invention provides a method for improving call quality, which comprises the following steps: the method comprises the steps that a DECT HS collects voice data through a plurality of built-in microphone devices, carries out analog-to-digital conversion and coding on the voice data to obtain voice coding data corresponding to each microphone, and simultaneously sends the voice coding data corresponding to each microphone to a DECT Base; the minimum transmission unit for transmitting the voice coding data consists of a plurality of slots, and the number of the slots is determined according to the total bit rate when the voice coding data corresponding to each microphone are transmitted simultaneously; said DECT HS has been registered on said DECT Base and has established a DECT call; decoding the voice coding data by the DECT Base to obtain PCM voice data, and transmitting the PCM voice data to a video conference system or a voice conference system; the video conference system or the voice conference system restores voice according to the PCM voice data. According to the embodiment of the invention, when a plurality of microphones are adopted to collect voice data at the same time, the number of the minimum transmission units slot is determined according to the total bit rate when the voice coding data corresponding to each microphone are simultaneously transmitted to the DECT Base, so that the problem that voice distortion is caused by incomplete voice coding data transmission when the conventional minimum transmission units are adopted to simultaneously transmit the multi-microphone voice coding data is solved, and therefore, the embodiment of the invention can improve the conversation quality.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a method for improving call quality according to one embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be understood that the step numbers used herein are for convenience of description only and are not limiting as to the order in which the steps are performed.
It is to be understood that the terminology used in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The terms "comprises" and "comprising" indicate the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
The term "and/or" refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
DECT (DIGITAL ENHANCED Cordless Telecommunications ), DECT system comprising HS and Base, HS (handle) being a Base-connected wireless device, like a cell phone; base is the fixed end of the DECT device, like the Base station of a cell phone. slot: time slices in the DECT time division direction; carrier: frequency bins in the DECT frequency division direction.
In DECT systems, the channels include time division slots and frequency division carriers. For example, time division slot0 plus frequency division carrier0 is channel 0, and time division slot1 plus frequency division carrierl is channel 1. The transmission unit is the number of slots occupied when the voice coding data are transmitted. The minimum transmission unit commonly used at present is one full slot, one long slot or one double slot. full slot occupies one slot, the single transmission data volume is 320 bits, and the bit rate is 32Kbps (320 bits/10 ms); the long slot occupies two slots, the single transmission data volume is 640 bits, and the bit rate is 64Kbps (640 bits/10 ms); double slots occupy two slots, the single transmission data volume is 800 bits, and the transmission bit rate is 80Kbps (800 bits/10 ms).
When the single microphone voice coding data is transmitted, the bit rate is 32Kbps, the bit rate of the simultaneous transmission of the voice coding data of the three microphones is 96Kbps, the bit rate of the full slot is 32Kbps, the bit rate of the long slot is 64Kbps,double slot and the bit rate of the long slot is 80Kbps, obviously, the bandwidth of the single slot/long slot/double slot cannot meet the requirement of simultaneously transmitting the voice coding data of the three microphones, therefore, when the single slot/long slot/double slot is adopted as a minimum transmission unit to simultaneously transmit the voice coding data corresponding to the microphones respectively, the voice coding data transmission is incomplete, thereby causing the problem of voice distortion and further reducing the conversation quality. In order to improve the voice quality, the invention provides a method for improving the voice quality.
Example 1:
referring to fig. 1, an embodiment of the present invention provides a method for improving call quality, including:
The method comprises the steps that a DECT HS collects voice data through a plurality of built-in microphone devices, carries out analog-to-digital conversion and coding on the voice data to obtain voice coding data corresponding to each microphone, and simultaneously sends the voice coding data corresponding to each microphone to a DECT Base; the minimum transmission unit for transmitting the voice coding data consists of a plurality of slots, and the number of the slots is determined according to the total bit rate when the voice coding data corresponding to each microphone are transmitted simultaneously; said DECT HS has been registered on said DECT Base and has established a DECT call;
Decoding the voice coding data by the DECT Base to obtain PCM voice data, and transmitting the PCM voice data to a video conference system or a voice conference system;
the video conference system or the voice conference system restores voice according to the PCM voice data.
In the embodiment of the invention, the plurality of microphones refer to the number of microphones being 3 or more, so that the voice coding data corresponding to each microphone can be sent simultaneously. English of the video conference system is abbreviated as VCS, and English of the voice conference system is abbreviated as CP.
The working flow of the embodiment of the invention specifically comprises the following steps:
A chip, such as a DCX81 chip, is configured as a DECT Base and is used as a receiving end of voice coding data, and is connected with a VCS/CP host through a USB data line;
Another chip, for example, a DCX81 chip is configured as a DECT HS, is used as a voice data acquisition end and a voice data sending end, and is connected with a DECT Base through wireless communication;
Registering the DECT HS with the DECT BASE, and establishing a DECT call;
The method comprises the steps that the DECT HS collects voice data through a plurality of built-in microphones (MICPOD, mic), analog-to-digital conversion and coding are respectively carried out on the collected voice data corresponding to each microphone, multi-microphone voice coding data are obtained, and the multi-microphone voice data are simultaneously transmitted to a DECT Base end through a DECT call function; the minimum transmission unit in the transmission process is determined according to the total bit rate when the multi-microphone voice data are simultaneously transmitted, for example, when the 16KHZ voice data are collected through three microphones, the minimum transmission unit in the transmission process is 2 slots or 4 slots; the coding mode is custom codec coding;
The method comprises the steps that a DECT Base receives voice coding data sent by a DECT HS, decodes the voice coding data to obtain PCM voice data, and sends the PCM voice data to a VGCS/CP; the VGCS/CP comprises a host and a conference opposite terminal;
the host computer of the VCS/CP optimizes the voice algorithm according to the received PCM voice data, and sends the optimized voice data to the opposite conference end, and the opposite conference end restores the voice through the loudspeaker.
According to the embodiment of the invention, when a plurality of microphones are adopted to collect voice data at the same time, the number of the minimum transmission units slot is determined according to the total bit rate when the voice coding data corresponding to each microphone are simultaneously transmitted to the DECT Base, so that the problem that voice distortion is caused by incomplete voice coding data transmission when the conventional minimum transmission units are adopted to simultaneously transmit the multi-microphone voice coding data is solved, and therefore, the embodiment of the invention can improve the conversation quality.
As an example of the embodiment of the present invention, when the 16KHz voice data is simultaneously collected by the built-in 3 microphones, the minimum transmission unit is composed of 4 slots or 2 long slots.
As an example of an embodiment of the present invention, the DECT Base transmits the PCM voice data to the videoconferencing system or the voice conferencing system via a USB data line.
As an example of the embodiment of the present invention, the video conference system and the voice conference system each include a host and a conference opposite terminal, and the video conference system or the voice conference system restores voice according to the PCM voice data, specifically includes:
The host of the video conference system or the host of the voice conference system optimizes the PCM voice data by a voice algorithm, and sends the optimized voice data to the conference opposite terminal, and the conference opposite terminal restores the optimized voice data into voice.
In the embodiment of the present invention, it should be noted that the conference peer is a terminal device configured with a speaker, and the speaker restores voice data into voice.
Example 2:
The embodiment of the invention provides a method for improving call quality, which is applied to DECT HS and comprises the following steps:
simultaneously collecting voice data through a plurality of built-in microphone devices;
performing analog-to-digital conversion and coding on the collected voice data to obtain voice coding data corresponding to each microphone;
Simultaneously transmitting voice coding data corresponding to each microphone to the DECT Base, so that the DECT Base decodes the voice coding data to obtain PCM voice data, and transmitting the PCM voice data to a video conference system or a voice conference system for the video conference system or the voice conference system to restore voice; the minimum transmission unit for transmitting the voice coding data consists of a plurality of slots, and the number of the slots is determined according to the total bit rate when the voice coding data corresponding to each microphone are transmitted simultaneously; the DECT HS is registered with the DECT Base and a DECT call has been established.
As an example of the embodiment of the present invention, when the 16KHz voice data is simultaneously collected by the built-in 3 microphones, the minimum transmission unit is composed of 4 slots or 2 long slots.
Example 3:
The embodiment of the invention provides a method for improving call quality, which is applied to DECT Base and comprises the following steps:
Receiving voice coding data corresponding to each microphone sent by the DECT HS at the same time; wherein the number of microphones is greater than or equal to 3; the minimum transmission unit for transmitting the voice coding data consists of a plurality of slots, and the number of the slots is determined according to the total bit rate when the voice coding data corresponding to each microphone are transmitted simultaneously; the voice coding data is obtained by carrying out analog-to-digital conversion and coding on voice data acquired by a microphone by the DECT HS;
Decoding the voice coding data to obtain PCM voice data;
And sending the PCM voice data to a video conference system or a voice conference system so as to enable the video conference system or the voice conference system to restore voice.
As an example of the embodiment of the present invention, when the 16KHz voice data is simultaneously collected by the built-in 3 microphones, the minimum transmission unit is composed of 4 slots or 2 long slots.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.
Claims (8)
1. A method for improving call quality, comprising:
the method comprises the steps that the DECT HS collects voice data through a plurality of built-in microphone devices, carries out analog-to-digital conversion and coding on the voice data to obtain voice coding data corresponding to each microphone, and simultaneously sends the voice coding data corresponding to each microphone to the DECT Base; the minimum transmission unit for transmitting the voice coding data consists of a plurality of slots, and the number of the slots is determined according to the total bit rate when the voice coding data corresponding to each microphone are simultaneously transmitted to the DECT Base; said DECT HS has been registered on said DECT Base and has established a DECT call;
Decoding the voice coding data by the DECT Base to obtain PCM voice data, and transmitting the PCM voice data to a video conference system or a voice conference system;
the video conference system or the voice conference system restores voice according to the PCM voice data.
2. The method for improving call quality according to claim 1, wherein the minimum transmission unit is composed of 4 slots or 2 long slots when 16KHz voice data is simultaneously acquired through 3 built-in microphones.
3. The method of claim 1, wherein the DECT Base transmits the PCM voice data to the videoconferencing system or the voice conferencing system via a USB data line.
4. The method for improving call quality according to claim 1, wherein the videoconferencing system and the voice conferencing system each include a host and a conference peer, and the videoconferencing system or the voice conferencing system restores voice according to the PCM voice data, specifically comprising:
The host of the video conference system or the host of the voice conference system optimizes the PCM voice data by a voice algorithm, and sends the optimized voice data to the conference opposite terminal, and the conference opposite terminal restores the optimized voice data into voice.
5. A method for improving call quality is applied to DECT HS, and comprises the following steps:
simultaneously collecting voice data through a plurality of built-in microphone devices;
performing analog-to-digital conversion and coding on the collected voice data to obtain voice coding data corresponding to each microphone;
Simultaneously transmitting voice coding data corresponding to each microphone to a DECT Base, so that the DECT Base decodes the voice coding data to obtain PCM voice data, and transmitting the PCM voice data to a video conference system or a voice conference system for the video conference system or the voice conference system to restore voice; the minimum transmission unit for transmitting the voice coding data consists of a plurality of slots, and the number of the slots is determined according to the total bit rate when the voice coding data corresponding to each microphone are simultaneously transmitted to the DECT Base; the DECT HS is registered with the DECT Base and a DECT call has been established.
6. The method for improving call quality according to claim 5, wherein the minimum transmission unit is composed of 4 slots or 2 long slots when voice data of 16KHz are simultaneously acquired by 3 built-in microphones.
7. A method for improving call quality is applied to DECT Base, and comprises the following steps:
Receiving voice coding data corresponding to each microphone sent by the DECT HS at the same time; wherein the number of microphones is greater than or equal to 3; the minimum transmission unit for transmitting the voice coding data consists of a plurality of slots, and the number of the slots is determined according to the total bit rate when the voice coding data corresponding to each microphone are simultaneously transmitted to the DECT Base; the voice coding data is obtained by carrying out analog-to-digital conversion and coding on voice data acquired by a microphone by the DECT HS;
Decoding the voice coding data to obtain PCM voice data;
And sending the PCM voice data to a video conference system or a voice conference system so as to enable the video conference system or the voice conference system to restore voice.
8. The method for improving call quality according to claim 7, wherein the minimum transmission unit is composed of 4 slots or 2 long slots when voice data of 16KHz are simultaneously acquired by 3 built-in microphones.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011329255.4A CN112542175B (en) | 2020-11-24 | 2020-11-24 | Method for improving call quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011329255.4A CN112542175B (en) | 2020-11-24 | 2020-11-24 | Method for improving call quality |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112542175A CN112542175A (en) | 2021-03-23 |
| CN112542175B true CN112542175B (en) | 2024-05-07 |
Family
ID=75014732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011329255.4A Active CN112542175B (en) | 2020-11-24 | 2020-11-24 | Method for improving call quality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112542175B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1187090A (en) * | 1996-11-27 | 1998-07-08 | 摩托罗拉公司 | Apparatus, method and system for wireless audi oand video conferencing and telephony |
| CN1449203A (en) * | 2002-03-28 | 2003-10-15 | 华邦电子股份有限公司 | Method for transmitting information using voice channel in DECT radio communication system |
| CN101860379A (en) * | 2010-06-02 | 2010-10-13 | 深圳国威电子有限公司 | Cordless telephone based on DECT and control method |
| CN111343349A (en) * | 2020-02-25 | 2020-06-26 | 厦门亿联网络技术股份有限公司 | USB telephone device supporting multi-equipment conference application and control method thereof |
| CN111464996A (en) * | 2020-02-26 | 2020-07-28 | 厦门亿联网络技术股份有限公司 | DECT resource coordination method and system based on network |
| CN111769901A (en) * | 2020-05-12 | 2020-10-13 | 厦门亿联网络技术股份有限公司 | DECT base station, mobile terminal and system for transmitting data frame |
| CN111770231A (en) * | 2020-06-05 | 2020-10-13 | 厦门亿联网络技术股份有限公司 | DECT base station, handle and communication system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7042463B2 (en) * | 2018-06-13 | 2022-03-28 | パナソニックＩｐマネジメント株式会社 | Cordless phone and base unit |
-
2020
- 2020-11-24 CN CN202011329255.4A patent/CN112542175B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1187090A (en) * | 1996-11-27 | 1998-07-08 | 摩托罗拉公司 | Apparatus, method and system for wireless audi oand video conferencing and telephony |
| CN1449203A (en) * | 2002-03-28 | 2003-10-15 | 华邦电子股份有限公司 | Method for transmitting information using voice channel in DECT radio communication system |
| CN101860379A (en) * | 2010-06-02 | 2010-10-13 | 深圳国威电子有限公司 | Cordless telephone based on DECT and control method |
| CN111343349A (en) * | 2020-02-25 | 2020-06-26 | 厦门亿联网络技术股份有限公司 | USB telephone device supporting multi-equipment conference application and control method thereof |
| CN111464996A (en) * | 2020-02-26 | 2020-07-28 | 厦门亿联网络技术股份有限公司 | DECT resource coordination method and system based on network |
| CN111769901A (en) * | 2020-05-12 | 2020-10-13 | 厦门亿联网络技术股份有限公司 | DECT base station, mobile terminal and system for transmitting data frame |
| CN111770231A (en) * | 2020-06-05 | 2020-10-13 | 厦门亿联网络技术股份有限公司 | DECT base station, handle and communication system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112542175A (en) | 2021-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1148985C (en) | Method of invoking and cancelling voice or data service from a mobile unit | |
| US6272358B1 (en) | Vocoder by-pass for digital mobile-to-mobile calls | |
| CN1195446A (en) | Household person communication system | |
| JP2795151B2 (en) | Multiplexing of system information and voice for simplified mobile phone system | |
| JPH0832603A (en) | Subscriber device | |
| JP2001501415A (en) | Cellular telephone interface system for AMPS and CDMA data services | |
| CN1371580A (en) | Network based muting of cellular telephone | |
| CN100479517C (en) | Method for superposing voice in transmitting audio-video file | |
| CN1964471A (en) | 2.4G public frequency band digital visual interphone and method to process audio image | |
| RU2303853C2 (en) | Communications equipment room complex | |
| CN106453790B (en) | A kind of means of communication based on more bluetooth telephone meetings | |
| US6574281B1 (en) | Voice recording and playback mode using the G.726 half-rate within the personal handy phone system | |
| CN101867978A (en) | Semi-static scheduling cycle management method, user equipment, base station and communication system | |
| CN101355611B (en) | Voice conference system and portable electronic device using the same | |
| CN112542175B (en) | Method for improving call quality | |
| US6172965B1 (en) | Duplex transmission scheme | |
| WO1997034433A1 (en) | A communication method and an adapter between a wireless telephone terminal and a data source | |
| CN101310507A (en) | A base unit adapted to provide a communications connection as well as a method of providing a communications connection | |
| EP1111822A2 (en) | A wireless channel quality indicator | |
| US6904031B1 (en) | Retrieving stored data from a base unit of a multi-line wireless phone system | |
| CN111432294A (en) | Wireless communication method and system of full-duplex interphone | |
| EP0666674A2 (en) | Method and apparatus for improved radio-frequency link establishment and monitoring in a communication system | |
| KR100244851B1 (en) | Method for connecting a portable phone to the wire telephone network | |
| CN2411629Y (en) | Time-division multiplexing circuit for wide-range code division multiple access wireless insertion system | |
| EP1615363A1 (en) | Communication device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |