39 results about "Videotelephony" patented technology

A communication unit 1 carries out voice communication, and a character background selection input unit 2 selects a CG character corresponding to a communication partner. A voice/music processing unit 5 performs voice/music processing required for the communication, a voice/music converting unit 6 converts voice and music, and a voice/music output unit outputs the voice and music. A voice input unit 8 acquires voice. A voice analyzing unit 9 analyzes the voice, and an emotion presuming unit 10 presumes an emotion based on the result of the voice analysis. A lips motion control unit 11, a body motion control unit 12 and an expression control unit 13 send control information to a 3-D image drawing unit 14 to generate an image, and a display unit 15 displays the image.

System and method for providing personal videotelephony in which a plurality of videophones are connected to a communications network that is configured for transmitted video and audio communications. Each of the videophones typically includes a camera, display device, telephone keypad, speaker and microphone all of which are operatively connected. The videophones further include means for selectably receiving and transmitting signals over the communications network, which signals represent images and/or sound, and for selectably displaying the signals representing any received signals representing the images on the display screen, and for playing any received signals representing the sounds on said speaker. Means are also provided for selectably accessing a remote location, such as, but not limited to, another videophone, using information entered or selected by a user of the videophone, and to retrieve the signals representing the images and sounds being transmitted from the remote location. In one or more embodiments the present invention further includes at least one networks operation center to store information related to the operation of the videophones and to facilitate the operation of the videophones.

The invention discloses a method and a device for encoding and decoding embedded voice or a voice-frequency signal, belonging to the encoding technology and aiming at solving the problem that a signal frequency band processed by the prior embedded voice encoding is narrower. The method for encoding the embedded voice or the voice-frequency signal comprises the following steps: dividing the signal into a low-frequency subband and a high-frequency subband according to a frequency band occupied by mono ultra wideband voice or a voice-frequency signal; carrying out embedded encoding for a low-frequency subband signal of the mono ultra wideband voice or the voice-frequency signal in a wideband embedded encoding layer; and carrying out the embedded encoding to a high-frequency subband single of the mono ultra wideband voice or the voice-frequency signal in a preset high-frequency signal encoding layer. The method and the device for encoding and decoding the embedded voice or the voice-frequency signal can be applied in the fields of audio/video frequency conferences, picturephone conferences, network communication, mobile communication, network congestion control, 3-G mobile communication and 4-G mobile communication.

A display apparatus and method are provided. The display apparatus includes a videotelephony performer that is configured to perform a videotelephony with another display apparatus; and a controller configured to control a corresponding feedback that is output when gestures and speech of a user and the other party of the videotelephony have a preset correlation during a process in which the videotelephony is performed.

A method of controlling switching of an operation mode of a TV phone. The TV phone includes a TV unit that reproduces and outputs a video signal and an audio signal from a selected channel. A display unit interfaces with the TV unit and receives and displays the video signals from the TV unit while in a TV mode. A TV audio signal processer receives the audio signal from the TV unit and outputs audible sound. An MRFU receives data of a forward channel transmitted from a base station. An MSP provides a channel selecting signal to the TV unit in the TV mode and transmits and receives an audio signal input from the MRFU in a phone mode. The method comprises the steps of alerting the user of an incoming call in response to an incoming call signal transmitted from the base station when the TV phone is in a TV mode and switching from the TV mode to the phone mode, the switching preferably including disabling the operation of the TV unit.

A method of compression of videotelephony images characterized by: creating (10) a learning base containing images; centering the learning base about zero; determining component images by principal component analysis (12); and keeping a number of significant principal components (14).

A method determines a route in distance value for use in routing protocols. An optimum route is determined for time-critical transmissions such as videotelephony or VoIP. For this purpose, the route distance value is calculated as the product of the link metrics for the links of a route, said link metrics being the product of data packet arrival rates. This value is the optimum value for the route which requires the lowest number of repeated packet transmissions (retransmissions). Optionally, an additional factor can be inserted in the link metrics, which factor ensures that the length of a route is also taken into consideration.

The invention discloses a device and method for shifting a video telephone service and a vocal telephone service, relating to the technical field of communication. The method of the invention is suitable for supporting the users of the video telephone service. The method comprises: in the conversing process of two users, any one user starts up the shifting request; if the user received the shifting request and accept the shifting, returning the confirming message to the user starting the shifting request; after the user starting the shifting request receives the message, stopping the current calling and starting the call different from the current call. The technical solution of the invention achieves the shifting between a video telephone service and a vocal telephone service, and the shifting can be achieved by the demand of the user in the shifting process in the shifting process; and the method can restore to the original call if the shifting is failed. In addition, the technical solution of the invention is suitable for sorts of telephone terminals, no matter the fixed net telephone terminal and the mobile teelphine terminal.

A videotelephony image modulation apparatus and method detects an event having a possibility of information leakage by analyzing an image and provides a secured calling mode of masking all or a part of the image and transmitting a masked image obtained through the masking.

The invention provides a multi-party video communication device, which is mainly composed of a microphone socket, an electrical connection device and an integrated circuit board. The multi-party videocommunication device is connected to various communication devices through the electrical connection device and is connected to a conversion line to achieve an objective of simultaneous multi-party communication of multiple system users. According to the invention, simultaneous access to communication devices of multiple systems for multi-party communication is realized, so that the number of multi-party communication is increased and thus the demand of simultaneous video and telephone conferences of communication devices of different systems is satisfied. Moreover, problems that the way of simultaneous access to the system by multi-party communication transmission and conversion devices is single and the communication of the video and telephone conference needs to be suspended for call access of a new user are solved.

A videotelephony lighting system and a method of using the same is provided. The videotelephony lighting system includes one or more light bars that can prop themselves up or be supported by a stand so as to be positioned in different configurations to light a user's face while they are on a video call. The videotelephony lighting system embodies a simple approach wherein each lightbar provides only one linear high-CRI LED light source having a 2700-3000 K CCR.

The invention relates to the technical field of comprehensive emergency management, in particular to an air-land integrated emergency command platform which comprises a technical support layer, a resource layer, a service layer, a process layer and a service calling interface layer. The technical support layer is composed of an image access system, a unified communication system, a video and telephone conference system, a server system, an operation terminal, a post system, a spatial information platform, a WEB application platform and a mobile phone application platform. The service layer comprises various service applications. The service calling interface layer directly corresponds to different system applications and provides different professional service calling interfaces and universal management interfaces for user registration, verification and the like. Besides, sensing to a physical world is achieved through internet of things and a data link network, and information is transmitted to the platform by means of the data link network. The air-land integrated emergency command platform solves the problem that an existing emergency platform system is incomplete, and can be applied to serving as a militia air-land integrated command platform.

The invention provides a remote video conference system, which is mainly composed of a microphone socket, an electrical connection device and an integrated circuit board. The remote video conference system is connected with various communication devices through the The purpose of multi-system users to make multi-party calls at the same time can be realized by connecting; the present invention can simultaneously access multi-system communication devices for multi-party calls, increasing the number of multi-party calls, and meeting the needs of different system communication devices for simultaneous video conference calls ; And it solves the simplification of multi-party call transmission and conversion devices in the prior art that can simultaneously access the system, and the problem that the new user calls need to suspend the video conference call.

The embodiment of the invention provides a video telephone service access method, an articulated naturality web core server and an articulated naturality web terminal. The method comprises the steps: in a video telephone service where a first articulated naturality web terminal and a third articulated naturality web terminal communicate with each other in an articulated naturality web, sending a video telephone request command by the first articulated naturality web terminal; obtaining service preparation information of the second articulated naturality web terminal, allocating a multicast address to the second articulated naturality web terminal when the second articulated naturality web terminal can perform a multi-end call service, and establishing data links between the second articulated naturality web terminal and the first articulated naturality web terminal and between the second articulated naturality web terminal and the third articulated naturality web terminal, so that the second articulated naturality web terminal accesses a video telephone service. In the embodiment of the invention, in the process of developing the video telephone service, the flexibility and the application range of the multi-terminal telephone in the video networking video telephone service are improved, on the basis of realizing the multi-terminal telephone, the communication with other terminals can be realized without ending the current communication, and the control efficiency of the video telephone service is improved.