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1041results about How to "Improve call quality" patented technology
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Centralized call processing
InactiveUS7899167B1Reduce data communicationLower connection costsSpecial service provision for substationMultiplex system selection arrangementsData sharingCall routing
Disclosed are systems and methods which provide a centralized architecture for call processing. Embodiments utilize voice over Internet protocols (VoIP) to carry calls from a location at which calling services are provided to a centralized call processing platform providing call processing functionality, such as calling party identification, call validation, call routing, and connection to the public switched telephone network (PSTN). Call processing gateways may be utilized to provide plain old telephone service (POTS) analog line interfaces for use with a plurality of telephone sets disposed for use at a location and at least one wide area network (WAN) interface for providing high speed data communication to a centralized call processing platform. PSTN interfacing by a call processing platform may be provided as a VoIP connection to the PSTN and / or as POTS trunking. Call processing platforms may provide for data sharing, aggregation, and / or analysis across multiple facilities served.
Owner:SECURUS TECH LLC
Inmate management and call processing systems and methods
InactiveUS7529357B1Reduce data communicationLower connection costsMultiplex system selection arrangementsSpecial service provision for substationThird partyHandling system
Disclosed are systems and methods that provide centralized or nodal inmate management and telephone call processing capabilities to controlled environment facilities. An inmate management and call processing system serves a plurality of facilities and includes an inmate information database. The database is shared across the facilities and contains inmate records that may be accessed and modified by each facility as the inmate is transferred among those facilities. Each inmate record may include, among other information, contact information of third parties whom may be notified of the inmate's arrest and / or subsequent transfers of the inmate to different facilities. The inmate management and telephone call processing system may use third party contact information to establish accounts used to charge calls or transactions made by an inmate while residing at the facility. Some systems may also provide call processing, video conferencing, e-mail, voicemail, and / or videomail applications, and the like to the facilities.
Owner:SECURUS TECH LLC
Methods and systems for telephony call-back processing
InactiveUS20060126806A1Improve call qualityReduce call costsAutomatic call-answering/message-recording/conversation-recordingAutomatic exchangesEngineeringComputer science
The present invention provides flexible call processing. In one embodiment, a first call from a calling party intended for a called party is received at a call processing system. The call processing system places a second call to a telephonic device associated with the called party. The calling party and called party communicate via the first and second calls. A determination is made that the first call has been terminated. A call-back instruction is received from the called party while the second call is still in place. At least partly in response to receiving the call-back instruction, a third call is placed to a terminal associated with the calling party. The calling party and the called party can communicate via the second call and the third call.
Owner:CALLWAVE COMM
Radio-frequency interference processing method, storage medium and terminal
InactiveCN106936515AReduce distractionsImprove call qualityElectrical apparatus interference reductionCurrent channelRadio frequency signal
The invention discloses a radio-frequency interference processing method, a storage medium and a terminal. The radio-frequency interference processing method comprises the following steps: obtaining radio frequency information obtained when the terminal communicates, wherein the radio frequency information comprises a current channel and signal intensity of the current channel; when judging that the current channel is an interference channel of MIPI (mobile industry processor interface) main frequency in an interference channel information record table, judging whether the difference value between the signal intensity of the current channel and interference degree corresponding to the interference channel is smaller than a threshold value; and when the difference value between the signal intensity of the current channel and the interference degree corresponding to the interference channel is smaller than the threshold value, adjusting working frequency of the MIPI into MIPI backup frequency. When the MIPI main frequency has interference on the radio-frequency signal, the MIPI work frequency is switched to the MIPI backup frequency, thereby reducing interference of the MIPI main frequency on the radio-frequency signal, and improving conversation quality.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD
Methods and systems for routing telecommunications
InactiveUS7852749B2Improve call qualityReduce communicationInterconnection arrangementsError preventionWaiting timeNetwork routing
Owner:CALLWAVE COMM
Method for detecting conditions of microphone voice-grade channels and terminal
ActiveCN103929707AImprove experienceImprove call qualityElectrical apparatusEngineeringAudio frequency
The invention discloses a method for detecting the conditions of microphone voice-grade channels and a terminal, and belongs to the field of mobile terminals. The method includes the steps that acoustical signals are acquired through each microphone; the characteristics of each acquired acoustical signal are extracted; whether abnormal conditions of the microphone voice-grade channels exist or not is judged according to the difference between the characteristics of the acoustical signals. According to the method, whether the abnormal conditions of the microphone voice-grade channels exist or not is judged through analysis of the difference between the characteristics of the acoustical signals collected through the microphones, signal optimization is carried out on an abnormal channel or a user is reminded to examine and handle the abnormal channel, and therefore speech quality can be improved.
Owner:NUBIA TECHNOLOGY CO LTD
Methods and systems for routing telecommunications
InactiveUS20060227766A1Improve call qualityReduce latencyInterconnection arrangementsError preventionCall originationComputer science
Methods and systems of routing calls over a network are described herein. A latency measurement is performed for at least a plurality of portions of a plurality of network paths and storing latency measurement information in computer readable memory. A dropped packet measurement is performed for at least portions of the plurality of network paths and storing dropped packet measurement information in computer readable memory. A call origination request is received. A network routing path is selected from the plurality of network paths, the network paths including a call manager, based at least in part on the latency measurement information and the dropped packet measurement information. A proxy system associated with a SIP provider is informed of the call. The call manager in the selected network path generates the call.
Owner:CALLWAVE COMM
Semiconductor device and electronic device
InactiveUS20050199987A1Suppress output fluctuationMiniaturizationHigh frequency amplifiersSemiconductor/solid-state device detailsLow noiseHigh frequency power
This invention provides a high frequency power module which is incorporated into a mobile phone and which incorporates high frequency portion analogue signal processing ICs including low noise amplifiers which amplify an extremely weak signal therein. A semiconductor device includes a sealing body which is made of insulation resin, a plurality of leads which are provided inside and outside the sealing body, a tab which is provided inside the sealing body and has a semiconductor element fixing region and a wire connection region on a main surface thereof, a semiconductor element which is fixed to the semiconductor element fixing region and includes electrode terminals on an exposed main surface, conductive wires which connect electrode terminals of the semiconductor element and the leads, and conductive wires which connect electrode terminals of the semiconductor element and the wire connecting region of the tab. In such a semiconductor device, a circuit formed in the semiconductor element in a monolithic manner is comprised of a plurality of circuit parts and, in a specified circuit part (a low noise amplifier) which forms a portion of the circuit parts, all grounding electrode terminals out of electrode terminals of the semiconductor element are not connected to the tab through wires but are connected with the leads through wires.
Owner:RENESAS ELECTRONICS CORP
Call processing with voice over internet protocol transmission
InactiveUS8000269B1Reduce data communicationLower connection costsSpecial service provision for substationMultiplex system selection arrangementsData sharingSpeech sound
Disclosed are systems and methods which provide call processing for a plurality of telephones at a site for which calling services are provided. Call control functionality is distributed to remote locations using data networks according to embodiments. The aforementioned data networks and / or separate data networks are used to carry call content using voice over Internet protocols (VoIP). Embodiments utilize VoIP to carry calls from a location at which calling services are provided to a centralized call processing platform providing call processing functionality, such as calling party identification, call validation, call routing, and connection to the public switched telephone network (PSTN). PSTN interfacing by a call processing platform may be provided as a VoIP connection to the PSTN and / or as POTS trunking. Call processing platforms may provide for data sharing, aggregation, and / or analysis across multiple facilities served.
Owner:SECURUS TECH LLC
Earphone jack for eliminating power noise in mobile communication terminal, and operating method thereof
InactiveUS7747295B2Eliminate Power NoiseImprove call qualityEarpiece/earphone attachmentsSubstation equipmentTelecommunicationsSound sources
Owner:SAMSUNG ELECTRONICS CO LTD
Mobile secret communication method based on quantum key distribution network
ActiveCN104243143AExpand the scope of business applicationEasy to implementKey distribution for secure communicationPublic key for secure communicationKey generationKey distribution
The invention discloses a mobile secret communication method based on a quantum key distribution network. The method includes the steps that a mobile terminal registers to have access to the network, and the binding relationship between the mobile terminal and some centralized control station in the quantum key distribution network is built; after communication service is started, the mobile terminal participating in the communication applies for a service key from the quantum key distribution network; the quantum key distribution network obtains the addresses of all centralized control stations participating in service key distribution in the communication, and a service key generation centralized control station is assigned according to the current state indicators of all the centralized control stations; the service key generation centralized control station generates the service key needed by the communication and distributes the service key to the mobile terminal participating in the communication; the mobile terminal participating in the communication uses the service key, and secret communication is performed through the original data link of the communication service of the class. According to the method, the existing scheme in the industry is improved in the service key generation link and the key relay link, and the problem that when there are lots of relay nodes, key arrival lags behind, and the quality of service is influenced is solved.
Owner:QUANTUMCTEK +1
Simulation noise reduction system and method for microphone
InactiveCN101848288AImprove call qualityGood noise suppressionTwo-way loud-speaking telephone systemsSpeech analysisSimulation noiseDsp algorithms
Owner:北京东微世纪科技有限公司 +1
Blue tooth relay unit and its implementing method
InactiveCN101110624AImprove call qualitySave money on callsNear-field transmissionRadio relay systemsRadio frequencyWireless communication systems
The present invention discloses a Bluetooth relay device and a method to realize the relay, which are suitable for wireless communication systems of Bluetooth terminals and Bluetooth gateways. The device comprises a processor module arranged with a memory for a Bluetooth protocol stack at an intermediate operation layer and an upper layer and to realize conversion between a Bluetooth earphone protocol and a cordless phone protocol, a Bluetooth module connected with the processor module and arranged with a Bluetooth radio frequency and base band processing chip, a power amplifier and a low-noise amplifier respectively connected with the Bluetooth radio frequency and base band processing chip to operate a lower layer of Bluetooth protocol stack, communicate with the processor module and conduct receiving / sending of Bluetooth radio frequency and base band processing. The present invention realizes interconnection between a Bluetooth earphone or a handheld Bluetooth terminal and a voice gateway based on a Bluetooth cordless phone protocol in a specific scope, thus making full use of fixed network resource, improving call quality and reducing call expense.
Owner:ZTE CORP
Inmate management and call processing systems and methods
InactiveUS8340260B1Large capacityIncrease speedSpecial service provision for substationMultiplex system selection arrangementsThird partyHandling system
Disclosed are systems and methods that provide centralized or nodal inmate management and telephone call processing capabilities to controlled environment facilities. An inmate management and call processing system serves a plurality of facilities and includes an inmate information database. The database is shared across the facilities and contains inmate records that may be accessed and modified by each facility as the inmate is transferred among those facilities. Each inmate record may include, among other information, contact information of third parties whom may be notified of the inmate's arrest and / or subsequent transfers of the inmate to different facilities. The inmate management and telephone call processing system may use third party contact information to establish accounts used to charge calls or transactions made by an inmate while residing at the facility. Some systems may also provide call processing, video conferencing, e-mail, voicemail, and / or videomail applications, and the like to the facilities.
Owner:SECURUS TECH LLC
Method and device suitable for screen direction switching in video call
InactiveCN103763505AImprove call qualityAvoid performance lossTelevision conference systemsDevices with sensorComputer terminalVideo quality
The embodiment of the invention provides a method and device suitable for screen direction switching in a video call. The method includes the steps that in the process that a first terminal and a second terminal have the video call, and the first terminal monitors screen direction switching of the first terminal; after screen direction switching of the first terminal is monitored, a screen direction after being switched is sent to the second terminal; video stream sent by the second terminal according to video requirements corresponding to the screen direction is received. By means of the method and device, video quality can automatically adapt to screen direction switching of a terminal.
Owner:HUAWEI TECH CO LTD
Method for selectively connecting multi-mode mobile phone with mobile communication network or wireless network
InactiveUS20060030354A1Efficient switchingImprove call qualityAssess restrictionRadio/inductive link selection arrangementsCommunication qualityMobile communication network
A method for selectively connecting a multi-mode mobile phone with a mobile communication network or a wireless network is constructed among a mobile communication network, a wireless network and a multi-mode mobile phone, wherein the multi-mode mobile phone includes a first number corresponding to the mobile communication network, a second number corresponding to the wireless network, and a switching connection software. The multi-mode mobile phone can use the switching connection software to automatically connect the multi-mode mobile phone to the wireless network or the mobile communication network to maintain a better communication quality.
Owner:INVENTEC APPLIANCES CORP
Small-zone switching-over method
InactiveCN1852568AQuality improvementHigh sensitivityWireless communicationMobile stationComputer science
The method includes steps: (1) network side sets up threshold value of position for mobile station; and informing the set up threshold value of position to mobile station; (2) mobile station monitors and determines whether own position reaches to the threshold value of position in step (1) in real time; when reaching the threshold value of position, mobile station makes report to network side; (3) after receiving report in step (2), network side switches mobile station between adjacent cells. Based on accurate position, the invention makes mobile station switch between adjacent cells.
Owner:HUAWEI TECH CO LTD
Noise reduction method, noise reduction device and communication terminal
InactiveCN103219011AImprove call qualityReduce noise reduction costsSpeech analysisTelephone set constructionsSpectral analysisInput device
The invention discloses a noise reduction method, a noise reduction device and a communication terminal which are used for solving the noise interference problem in communication terminal conversation. The noise reduction method comprises controlling a first voice frequency input device to collect noise in an environment where the communication terminal is located; carrying out spectral analysis comparison on the environment noise and pre-stored scene noise in the communication terminal to obtain a comparison result; and according to the comparison result, calling noise reduction parameters corresponding to the environment noise, and according to the noise reduction parameters, separating user sound collected by a second voice frequency input device. The noise reduction method, the noise reduction device and the communication terminal have the advantages that through man-machine interaction, an exclusive button is set, a recording menu is called by triggering the button, a user can record noise in a user-defined mode and set the noise reduction parameters, in a conversation state, the user sound is separated through scene noise identification, conversation quality of the communication terminal is improved, and noise reduction cost of the communication terminal is saved.
Owner:LENOVO MOBILE COMM TECH
Automatic sound feedback detection and elimination method of real-time communication system
ActiveCN106373587AQuick checkQuickly eliminates acoustic feedbackSpeech analysisTime domainVoice communication
The invention relates to an automatic sound feedback detection and elimination method of a real-time communication system. The method is characterized by comprising steps that the audio data is acquired, and the historical squeaking estimation information is initiated; overlapping, windowing and FFT transformation of each frame of audio data are carried out to acquire the transformation data from a time domain to a frequency domain; a peak value power of the frequency domain data and a peak value interval are calculated; traversal of all the peak value information is carried out to acquire the present frame suspected squeaking frequency point information; the historical squeaking estimation information is updated through utilizing the peak value information and the present frame suspected squeaking frequency point information; the updated historical squeaking estimation information is analyzed, and present frame squeaking point determination is accomplished; a corresponding trap filter is generated according to a present frame squeaking point determination result. Through the method, sound feedback can be rapidly, accurately and effectively detected and eliminated, conversation quality is obviously improved, and the method has quite important application values in voice conferences and loudspeaker voice communication.
Owner:BEIJING RONGLIAN YITONG INFORMATION TECH CO LTD
Method and apparatus for adaptive transmission beam forming in a wireless communication system
InactiveUS7286855B2Improve received signal qualityImprove signal qualityRadio/inductive link selection arrangementsSubstation equipmentCovarianceEngineering
A method for forming an adaptive phased array transmission beam pattern at a base station without any knowledge of array geometry or mobile feedback is described. The approach is immune to the problems which plague methods which attempt to identify received angles of arrival from the mobile and map this information to an optimum transmit beam pattern. In addition, this approach does not suffer the capacity penalty and mobile handset complexity increase associated with mobile feedback. Estimates of the receive vector propagation channels are used to estimate transmit vector channel covariance matrices which form objectives and constraints in quadratic optimization problems leading to optimum beam former solutions for the single user case, and multiple user case. The new invention in capable of substantial frequency re-use capacity improvement in a multiple user cellular network.
Owner:THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIV +1
Sports Hi-Fi touch-control Bluetooth earphone
ActiveUS10154334B1Ingenious designReasonable structureMicrophonesHeadphones for stereophonic communicationBand-pass filterTouchpad
A sports Hi-Fi touch-control Bluetooth earphone includes a neckband, a first case and a second case connected to both ends of the neckband, an earplug set on each of the first and second cases, a Bluetooth main circuit board, a battery, a main microphone, an auxiliary microphone, and a capacitive touchpad. The main microphone and the auxiliary microphone simultaneously receive audio signals. The differential amplifier of the Bluetooth main circuit board computes the signal difference between the main microphone and the auxiliary microphone. The signal difference is further processed by a band-pass filter to pass only the human voice frequency band, with low and high frequency signals filtered out. The human voices are amplified to produce clear conversations, enhancing conversation quality and avoiding unclear signals. Mechanical keys on conventional Bluetooth earphones are replaced by the capacitive touchpad, making operations easy, convenient, waterproof, and dustproof to extend the lifetime thereof.
Owner:KINGSTATE ELECTRONICS DONGGUAN CO LTD
Method for regulating voice output of mobile terminal and mobile terminal
ActiveCN101668085AImprove experienceImprove call qualitySubstation equipmentFeature dataSpeech sound
The embodiment of the invention discloses a method for regulating voice output of a mobile terminal and a mobile terminal. The method comprises the following steps: receiving the voice signal by the mobile terminal during a conversation process of a user; conducting voice matching processing to the voice signal according to the voice feature data pre-stored of the user; conducting voice control processing to the results of the voice data matching and obtaining voice output data; and sending the voice output data. The implementation of the embodiment of the invention can improve the conversation quality of the voice output data by conducting matching processing to the voice signal received and user feature data and voice control processing to the results of the matching processing.
Owner:YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
An echo cancellation method and apparatus
ActiveCN104519212AGood output cancellationEliminate echo componentsTwo-way loud-speaking telephone systemsTransducer acoustic reaction preventionComputer scienceSpeech sound
An echo cancellation method comprises: an acquisition microphone acquiring a sound signal; a conversation microphone acquiring a near-end voice signal; cancelling an echo component in the near-end voice signal according to the sound signal, and generating a voice signal obtained after the echo cancellation; and outputting the voice signal obtained after the echo cancellation. Also disclosed is an echo cancellation apparatus. By using the present invention, the effect of echo cancellation can be improved, thereby improving the conversation quality.
Owner:CHONGQING HANYUAN MACHINERY
System and method for improving audio speech quality
ActiveCN101222555AEfficient removalImprove call qualityTwo-way loud-speaking telephone systemsLine-transmissionTime domainRate parameter
The invention discloses a system and a method for improving audio speech quality comprises the following steps that: firstly, preemphasis and Fourier transform treatment of the current frame of time domain first audio signal output by an audio collecting device and the current frame of the time domain second audio signal output by an audio playing device are completed; secondly, according to the frequency domain error signal parameter and frequency domain learning rate parameter obtained by the previous frame of the current frame, a frequency domain second audio signal is corrected; thirdly, de-emphasis treatment and subtraction of the first audio signal and the second audio signal are completed, thereby eliminating the echo in the first audio signal; meanwhile, according to the corrected time domain second audio signal and frequency domain second audio signal and preemphasized time domain first audio signal, the frequency domain error signal parameter and frequency domain learning rate parameter of the current frame are calculated and used for the treatment of the next frame, thereby effectively eliminating speech echo; in addition, through estimating the residual echo and noise of the audio signal with the echo eliminated, the invention effectively eliminates the noise in the audio signal and greatly improves the speech quality.
Owner:SHANGHAI AVCON INFORMATION TECH
Method of removing microphone noise and portable terminal supporting the same
InactiveUS20130051574A1Cancel noiseImprove call qualityEar treatmentMicrophone structural associationSupport removalEngineering
A method of removing a microphone noise and a portable terminal supporting the same are provided. The portable terminal supporting removal of a microphone noise includes a microphone for collecting an audio signal, a controller for processing the audio signal collected by the microphone, a microphone signal line for transferring a microphone signal collected by the microphone to the controller, and a noise collecting circuit disposed at a neighboring region of the microphone signal line for collecting and providing a noise signal similar to a noise induced in the microphone signal line to the controller, wherein the controller controls such that the noise induced in the microphone signal line is removed based on the noise signal collected by the noise collecting circuit.
Owner:SAMSUNG ELECTRONICS CO LTD
Method, device and evolution base station for saving adjacent cell relation information
InactiveCN101742612AImprove call qualityImprove satisfactionWireless communicationRadio access technologyCommunication quality
The invention discloses a method for saving an adjacent cell relation table, which comprises the step of: when determining that a second cell is a new adjacent cell of a first cell according to adjacent cell information measured and reported by terminals in the first cell, saving the adjacent cell relation information related to the second cell. The adjacent cell relation information related to the second cell contains any combination of the following parameter attributes: frequency information, tracking area code (TAC) information, radio access technology (RAT) information, inter-cell interference coordination (ICIC), load balancing (LB) and parameters for switching. The invention also discloses a device and an evolution base station for saving the adjacent cell relation information. By implementing the embodiment of the invention, the adjacent cell relation information containing the attributes can realize the optimization of network relation, thereby improving the communication quality of user terminals and the user satisfaction degree.
Owner:HUAWEI TECH CO LTD
Apparatus realizing distributed wireless cell and communication method
ActiveCN101394658AExtended stayGuaranteed Network MeasurementsRadio/inductive link selection arrangementsRadio transmission for post communicationCommunication qualityAir interface
The invention discloses a device and a communication method thereof for achieving a distributed type radio cell. The method comprises the following steps: after being received by a radio frequency remote unit, an uplink signal sent by a mobile terminal is forwarded to a base band unit; after being received by the base band unit, the uplink signal is resolved and synthesized, and sent to a base station controller; the base station controller sends a downlink signal to the base band unit; after being received by the base band unit, the downlink signal is resolved, and then distributed to a plurality of radio frequency remote units; and the radio frequency remote units forward the downlink signal to the mobile terminal through an aerial interface. The invention expands the effective coverage scope of the cell through the distributed type collaboration of the radio frequency unit at the remote end, thereby prolonging the sojourn time of a high speed mobile terminal passing through the cell, improving the measuring and switching effects of the mobile terminal passing through an adjacent cell, improving the communication quality of a mobile user, and satisfying the mobile communication demands on the occasions like express railway lines in a pertinence manner and the like.
Owner:ZTE CORP
Antenna control method and mobile terminal
ActiveCN105635387AIncrease signal strengthImprove call qualityTelephone set constructionsCommunication qualityComputer science
The embodiment of the invention discloses an antenna control method and a mobile terminal, wherein the antenna control method is applied to the mobile terminal; and the mobile terminal comprises a pop-up antenna and an electric device connected with the pop-up antenna. The antenna control method comprises the following steps: detecting the signal strength received by the mobile terminal in a communication state in real time; judging whether the signal strength is greater than a preset first strength threshold value or not in real time; and if not, controlling the electric device to pop out the pop-up antenna. By means of the embodiment in the invention, when the mobile terminal is in the communication state and the received signal strength is relatively weak, the pop-up antenna is automatically popped out, such that the signal strength received by the mobile terminal is enhanced; therefore, the communication quality of the mobile terminal is improved; users are unnecessary to manually operate and carry an auxiliary antenna; and thus, the user experience can be effectively improved.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD
Method and system for improving multi-media connection quality, media control and processing equipment
ActiveCN101686178AImprove call qualityError prevention/detection by using return channelData switching networksMedia controlsData transmission
The embodiment of the invention relates to method and system for improving multi-media connection quality and media control and processing equipment. In the invention, through comparing the parametersof a quality information feedback with corresponding parameters in a present session, the media control equipment notifies a transcoding machine of the media processing equipment to dynamically regulate media data; or through trigging the negotiation between the media control equipment and a multi-media terminal, the media data is regulated dynamically; or through expanding a H.248 indicative massage of the media control equipment, the media processing equipment is ordered to send a quality expansion message to dynamically regulate the media data so as to improve the multi-media connection quality; moreover, the media processing equipment can be used to dynamically detect the quality of the media data transmitted from a media data sending side in the process of the coding and decoding andtransmission of the media data, and to notify the media control equipment of the quality problems when the quality decreases, and then the media control equipment interacts with the media data sending side so as to regulate the media data sent by the media data sending side.
Owner:HUAWEI TECH CO LTD
System and method for verifying delay time using mobile image terminal
InactiveUS20050208979A1Good serviceMeasured quantitativelyTelevision conference systemsNetwork topologiesTime informationComputer science
The present invention relates to a mobile terminal, to a system and a method capable of monitoring in real-time a delay time of data transmitted / received between terminals in mobile terminals. According to the method, a terminal at a transmission side encodes data for an image call, transmits the encoded data to a terminal at a reception side, and receives the transmitted data as a loop-back to decode the same. An external monitoring device measures delay time information of the data using encoding and decoding time information and displays the information on a screen.
Owner:LG ELECTRONICS INC
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