KR101583028B1 - Triple band RF conference call systems and master-slave role determination methods - Google Patents
Triple band RF conference call systems and master-slave role determination methods Download PDFInfo
- Publication number
- KR101583028B1 KR101583028B1 KR1020150080068A KR20150080068A KR101583028B1 KR 101583028 B1 KR101583028 B1 KR 101583028B1 KR 1020150080068 A KR1020150080068 A KR 1020150080068A KR 20150080068 A KR20150080068 A KR 20150080068A KR 101583028 B1 KR101583028 B1 KR 101583028B1
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- Prior art keywords
- interface
- signal
- band
- voice
- frequency band
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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
- H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
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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
- H04B1/3827—Portable transceivers
-
- 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
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/022—Selective call receivers
- H04W88/025—Selective call decoders
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
Abstract
Description
The present invention relates to a triple RF band multiparty call system and method. More specifically, it transmits and receives the same digital voice signals by using three frequency bands of 2.4 GHz, 900 MHz and 400 MHz, and is composed of a bone conduction microphone and an in-ear speaker, thereby enabling communication in a noisy environment And a method for providing the same.
Generally, in a small-scale military operation, police, and fire fighting, each of the team members has a transceiver for short-range communication for commanding and communicating, and such a transceiver for short- A master transceiver and a slave transceiver that performs operations by receiving operations and commands.
The master transceiver is configured to transmit and receive voice signals to all sub transceivers and the sub transceiver is configured to transmit and receive voice signals only to the main transceiver so that a user using the sub transceiver can transmit and receive with the master transceiver, There were some restrictions among users.
Accordingly, in Korean Patent No. 10-0915839, a plurality of members possessing a sub-walkie-talkie can simultaneously perform wireless voice communication with two pairs of twins, and by using the sub-walkie as a wired / wireless handset of a main walkie, There is no need to separately provide a wired handset and a wireless handset, and a plurality of members having a sub-walkiephone can selectively perform voice and text communication, and only one main walkie-talkie, such as a train, an armored vehicle, There has been disclosed a multi-radio communication system of a transceiver capable of mutually wireless communication without limitation of a radius of action by using a sub-transceiver possessed by a rider.
However, when there is a problem in the frequency band selected by the users, it takes a long time to recover the trouble and the trouble, and the user using the master transceiver can not intermittently communicate the urgent message to the user using the slave transceiver.
In order to solve the problems of the related art, the present invention is to transmit and receive the same digital voice signals in a multi-way manner using three frequency bands of 2.4 GHz, 900 MHz, and 400 MHz, and includes a bone conduction microphone and an in- And provides a triple RF band multi-party call system and a method for communicating in a noisy environment.
In addition, the present invention provides a triple RF band multi-party call system and a method for providing emergency message transmission / reception, failure recovery, multi-party service status monitoring, and device location information sharing using a 400 MHz frequency band.
In addition, the present invention can dynamically attenuate a signal received by an RF transceiver through a CPU control, thereby adjusting the transmission / reception range between the devices, finely adjusting the communication service range, and stabilizing the communication quality in the service group And a method of providing the same.
According to an aspect of the present invention, there is provided a triple RF band multi-party call system including a transmitter configured to communicate with a neighboring user and configured to transmit a voice signal to an adjacent user, a receiver configured to receive a voice signal from an adjacent user, A signal converter configured to convert a voice signal received from the transceiver or an adjacent communication terminal into a digital signal or an analog signal, and a signal converter to encode or decode a voice signal received from the signal converter or the adjacent communication terminal A filter unit including an encoder for encoding a signal received from the signal converter and a decoder for restoring a coded signal to an original signal, an error detection unit for detecting an error in a speech signal received by the filter unit, Occurs A base band formed of a plurality of baseband chips configured to directly control a frequency band in an RF interface, and a base band configured to generate a preamble, A first RF interface configured to receive and communicate with an adjacent communication terminal, a second RF interface configured to communicate with an adjacent communication terminal, and a second RF interface configured to monitor and diagnose the service status of the first RF interface and the second RF interface, And a third RF interface in which a frequency band for setting a frequency band is set.
The transmitter may further include a bone conduction microphone for converting a voice signal inputted through the vibrating vibration of the bone into an electrical waveform and transmitting the voice wave when the user speaks voice.
The receiver may be configured to be surrounded by an in ear type finishing material for inserting a speaker into the ear.
The communication terminal may further include a main processing unit configured to monitor a conference service state of the first RF interface and the second RF interface and to recover from a failure and an error when a failure and an error occur, And an auxiliary memory device configured to store data information such as frequency and group code information to be used.
In addition, the main processing apparatus includes a function of dynamically attenuating a signal received from the RF interface.
The RF interface may further include an RF interface having a stronger signal strength by comparing a frequency band set in the first RF interface with a signal received in a frequency band set in the second RF interface, do.
In addition, the RF interface is characterized in that the communication terminal is configured as a TMDA / TDD system so as to enable bi-directional communication and multi-user voice communication.
The third RF interface may be directly controlled by the baseband chip or may be directly controlled by the main processing unit.
The third RF interface may be set to be lower than a frequency band of the first RF interface and the second RF interface.
A master-slave role determination method using a triple RF band multi-party call system including a transceiver, a signal converter, a filter unit, a baseband, and an RF interface includes: setting and applying a frequency and a group code to be used from an auxiliary memory; A step of scanning the synchronous signal transmitted from the peripheral device, a step of receiving the synchronous signal at the RF interface, and a step of booting the master and the slave terminal.
According to the embodiment of the present invention, the same digital voice signals are transmitted / received in a multi-way manner using three frequency bands of 2.4 GHz, 900 MHz, and 400 MHz, and a bone conduction microphone and an in- Can communicate in severe environment.
In addition, according to the embodiment of the present invention, it is possible to transmit / receive urgent messages, repair failures, monitor the status of multi-party services, and share device location information using the 400MHz frequency band.
Also, according to the embodiment of the present invention, by dynamically attenuating the signal received by the RF transceiver through the CPU control, the range of the communication service can be finely adjusted by adjusting the transmission / reception range between the devices, The communication quality can be stabilized.
Figs. 1A and 1B are an overall configuration diagram of a first embodiment of a triple RF band multi-
2 is an operational block diagram of a first embodiment of a triple RF band multi-
FIGS. 3A and 3B are a flowchart of the determination of the first embodiment of the triple RF band master-
4 is a block diagram of a triple RF band master-slave role determination method.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications are possible.
FIG. 1 is an overall block diagram of a first embodiment of a triple RF band multi-party call system; FIG. 2 is an operating block diagram of a first embodiment of a triple RF band multi- Figure 4 is a block diagram of a triple RF band master-slave role determination method.
A triple RF band multi-party communication system for establishing and communicating three frequency bands, comprising: a
The
The
The
Here, the bone conduction microphone is configured so that when a user speaks a voice, the voice signal that is introduced through the vibration of the bones is converted into an electrical waveform and is less influenced by wind noise and ambient noise.
The
The
In addition, the
The
In addition, the
The
The
The
The
The
The
The signal received through the
The
The
If the
Here, the
When the
In addition, the wireless communication unit including the
The
The
The
The
3A, when the
Here, when the
The
The
The
If it is determined that the frequency of the
If it is determined in step S140 that the sync code is not received or if the group code of the received sync signal does not match in step S150, it is checked whether the number of times of the cumulative sync signal scan exceeds three times in step S180. The signal is scanned (S130) and the
Although the present invention has been described in connection with the preferred embodiments thereof with reference to the accompanying drawings, it is to be understood that the present invention is not limited thereto, It is to be understood that various modifications and changes may be made without departing from the scope of the appended claims.
100: communication terminal 101: master terminal
103: Slave terminal 110: Transceiver
111: Transmitter 113: Receiver
120: signal converter 130: filter unit
131: Encoder 133: Decoder
140: base band 141: base band chip
150: RF interface 151: first RF interface
153: second RF interface 155: third RF interface
160: antenna 170: main processing unit
180: Auxiliary memory
Claims (10)
A transceiver configured to communicate between adjacent users, the transceiver comprising a transmitter for transmitting a voice signal to an adjacent user and a receiver for receiving a voice signal to an adjacent user;
A signal converter configured to convert a voice signal received from the transceiver or an adjacent communication terminal into a digital signal or an analog signal;
An encoder for encoding or decoding a speech signal received from the signal converter or the adjacent communication terminal and encoding the signal received from the signal converter; and a decoder for decoding the encoded signal into an original signal, ;
And a controller configured to detect an error in the voice signal received by the filter unit and to correct an error if an error occurs, the apparatus comprising: a plurality of units configured to generate a preamble to form a frame format, A base band made of a base band chip; And
A first RF interface configured to communicate with an adjacent communication terminal, a second RF interface configured to transmit / receive a predetermined frequency band and set / A frequency band to be used for monitoring, fault diagnosis and recovery is set, and when a communication is impossible, a data payload for urgent message transmission is transmitted to a user or an administrator, and is directly controlled by the baseband chip Or an RF interface consisting of a third RF interface that is directly controlled by the main processing unit;
And a third RF band-to-band call system.
The transmitter includes:
And a bone conduction microphone for transmitting a voice signal, which is transmitted through a vibration resonating from the bone, into an electrical waveform and transmitting the voice wave when the user speaks voice.
The receiver includes:
And an ear-type finish material for inserting a speaker into the ear. ≪ Desc / Clms Page number 19 >
The communication terminal includes:
A main processing unit configured to monitor a conference service state of the first RF interface and the second RF interface and to recover from a failure and an error when a failure and an error occur; And
An auxiliary memory configured to store data information such as frequency and group code information to be used in the RF interface;
Further comprising the step of: receiving a call request message from the radio base station.
The main processing apparatus includes:
And a function of dynamically attenuating a signal received at the RF interface.
The RF interface
And selecting an RF interface having a stronger signal strength by comparing a frequency band set in the first RF interface with a signal received in a frequency band set in the second RF interface, .
The third RF interface includes:
Wherein the frequency band of the first RF interface and the frequency of the second RF interface are set lower than the frequency band of the first RF interface and the second RF interface.
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KR1020150080068A KR101583028B1 (en) | 2015-06-05 | 2015-06-05 | Triple band RF conference call systems and master-slave role determination methods |
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KR1020150080068A KR101583028B1 (en) | 2015-06-05 | 2015-06-05 | Triple band RF conference call systems and master-slave role determination methods |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010008240A (en) * | 2000-11-16 | 2001-02-05 | 이진섭 | CDMA Repeater Guard System by N:1 Muliple Connecting Method |
KR100548414B1 (en) * | 2003-10-09 | 2006-02-02 | 엘지전자 주식회사 | Mobile communication terminal equipped with triple mode function |
KR100915839B1 (en) | 2009-04-23 | 2009-09-07 | 성진씨앤티(주) | Multilateral wireless communication system |
KR101436593B1 (en) * | 2014-06-09 | 2014-09-15 | 세영정보통신(주) | Radio Transmitting/Receiving Apparatus Using RF Dual Band |
-
2015
- 2015-06-05 KR KR1020150080068A patent/KR101583028B1/en active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010008240A (en) * | 2000-11-16 | 2001-02-05 | 이진섭 | CDMA Repeater Guard System by N:1 Muliple Connecting Method |
KR100548414B1 (en) * | 2003-10-09 | 2006-02-02 | 엘지전자 주식회사 | Mobile communication terminal equipped with triple mode function |
KR100915839B1 (en) | 2009-04-23 | 2009-09-07 | 성진씨앤티(주) | Multilateral wireless communication system |
KR101436593B1 (en) * | 2014-06-09 | 2014-09-15 | 세영정보통신(주) | Radio Transmitting/Receiving Apparatus Using RF Dual Band |
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