Abstract: One embodiment provides a method comprising acquiring, via one or more microphones of a device in a spatial area, a signal representing at least one echo of an ultrasound emitted via one or more loudspeakers of the device. The method further comprises applying digital signal processing to the signal to determine a signal-to-noise ratio (SNR) of the signal, and estimating one or more properties of a moving reflector in the spatial area based on the SNR of the signal.

Abstract: A method includes generating one or more graphs representing automatic content recognition (ACR) data associated with a computing device; identifying one or more paths representing at least a portion of the one or more graphs; training one or more models based on inputting the one or more paths into one or more machine-learning algorithms; producing one or more embeddings from the one or more models; and clustering the one or more embeddings to provide at least one cluster corresponding to a behavioral profile associated with the computing device.

Abstract: A method for video communication comprises initiating video communication on a channel with a first electronic device, communicating first content on the channel with the first electronic device, selecting second content from a source external to the video communication, switching video communication using the second content, and transmitting the second content on the channel to the first electronic device instead of the first content.

Abstract: A system for voice control of applications includes an electronic device that receives speech signals and converts the speech signals into words. A voice navigation module analyzes an application and determines application type and enabled features. A command registration module registers commands based on the determined application type and enabled features. The commands control the application when matched with associated speech. A speech command interpretation module receives the words and detects a speech mode for matching commands with interpreted speech, and executes matched commands for navigating through and controlling the application.

Abstract: Disclosed are a display apparatus, a client, an image display system including the same, and an image display method. The display apparatus includes a communication unit which communicates with at least one client; and a controller which receives server software for displaying a sharing image and at least one personal image from an exterior server, and executes the server software so that the sharing image is displayed on one of the display unit and the at least one client and the at least one personal image is displayed on the other of the display unit and the at least one client.

Abstract: A method for video communication comprises initiating video communication on a channel with a first electronic device, communicating first content on the channel with the first electronic device, selecting second content from a source external to the video communication, switching video communication using the second content, and transmitting the second content on the channel to the first electronic device instead of the first content.

Abstract: A system for voice control of applications includes an electronic device that receives speech signals and converts the speech signals into words. A voice navigation module analyzes an application and determines application type and enabled features. A command registration module registers commands based on the determined application type and enabled features. The commands control the application when matched with associated speech. A speech command interpretation module receives the words and detects a speech mode for matching commands with interpreted speech, and executes matched commands for navigating through and controlling the application.

Abstract: System and method for filtering a data packet using a combined filter are disclosed. In one aspect, the method includes receiving a data packet and N filters. The method includes receiving a data packet and N (wherein N is an integer and N>1) filters, each filter comprising a bit mask and corresponding bit values. The method further includes, for each of the N filters, identifying a key element from a portion of the filter corresponding to a combined filter, the key element being a segment of the filter portion having the richest bit pattern. The method further includes generating the combined filter by combining the key element of the N filters. The method further includes filtering the data packet with the combined filter to determine whether there is a match between the data packet and each key element.

Abstract: System and method for filtering a data packet using a combined filter are disclosed. In one aspect, the method includes receiving a data packet and N filters each comprising a mask and value. The method includes receiving a data packet and N (wherein N is an integer and N>1) filters, each filter comprising a bit mask and corresponding bit values. The method further includes generating a common filter mask and the corresponding bit values by taking the overlapping mask bits among portions of the N filters corresponding to the common filter, the common filter being of a length smaller than each filter. The method further includes applying the common filter mask to the data packet to determine whether there is a match between the filtered data packet and each of the N filters.

Abstract: A display apparatus includes a display unit; a communication unit which communicates with a terminal which displays a personal image provided to the terminal, the terminal being one of a plurality of terminals; and a controller controls the display unit to display a sharing image shared among users of the plurality of terminals on the display unit and changes the sharing image displayed on the display unit in accordance with an input received from the terminal. Accordingly, there is provided a display apparatus which provides a video interface including a sharing image and a personal image, a terminal and an image display method.

Abstract: Disclosed are a display apparatus, a client, an image display system including the same, and an image display method. The display apparatus includes a communication unit which communicates with at least one client; and a controller which receives server software for displaying a sharing image and at least one personal image from an exterior server, and executes the server software so that the sharing image is displayed on one of the display unit and the at least one client and the at least one personal image is displayed on the other of the display unit and the at least one client.

Abstract: A method and system for customizing an interactive cable host initialization process for a cable host device, is provided. One implementation involves triggering an interactive cable host initialization process for a cable host device, detecting a initialization stage event for the cable host device and providing initialization stage event notification, and dynamically receiving content determined by a Multiple Service Operator (MSO) cable headend based on the initialization stage event notification over a network.

Abstract: System and method for filtering a data packet using a combined filter are disclosed. In one aspect, the method includes receiving a data packet and N filters. The method includes receiving a data packet and N (wherein N is an integer and N>1) filters, each filter comprising a bit mask and corresponding bit values. The method further includes, for each of the N filters, identifying a key element from a portion of the filter corresponding to a combined filter, the key element being a segment of the filter portion having the. richest bit pattern. The method further includes generating the combined filter by combining the key element of the N filters. The method further includes filtering the data packet with the combined filter to determine whether there is a match between the data packet and each key element.

Abstract: System and method for filtering a data packet using a combined filter are disclosed. In one aspect, the method includes receiving a data packet and N filters each comprising a mask and value. The method includes receiving a data packet and N (wherein N is an integer and N>1) filters, each filter comprising a bit mask and corresponding bit values. The method further includes generating a common filter mask and the corresponding bit values by taking the overlapping mask bits among portions of the N filters corresponding to the common filter, the common filter being of a length smaller than each filter. The method further includes applying the common filter mask to the data packet to determine whether there is a match between the filtered data packet and each of the N filters.

Abstract: Systems connected to users generate a plurality of keys which are mutually shared, and download and upload digital contents by using secret channels formed between the systems. An information provider receives an authorization from a certificate authority. A licensed SDMI compliant module (LCM) is authenticated through the information provider, and the information provider and the LCM form a channel. A portable device is authenticated from the information provider through the LCM, and the LCM and the portable device form a channel. The digital content between the LCM and the portable device is downloaded and uploaded according to respective control state data of the LCM and the portable device. The system can use a physical address of a bad sector formed in the portable medium during the manufacturing process for preventing an illegal copy of the downloaded digital contents through the portable device after the digital contents have been downloaded.

Abstract: An user authentication system for authenticating a user using an IC card in conjunction with a portable terminal used to generate a one-time password and a server used to generate a corresponding one-time password for user authentication. The IC card contains a secret key for generating a one-time password and predetermined random numbers. The portable terminal contains a card receiver for receiving the IC card, a random number memory for reading and storing, and then deleting the random numbers of the IC card, a first password generator for generating a one-time password by the secret key of the IC card and the random number, a first random number changer for changing the random number stored in the random number memory into a predetermined value and storing the changed value in the random number storing portion, and a display for displaying the processed results of the terminal and the server.