Abstract: An electronic device is provided. The electronic device includes a plurality of microphones, a memory configured to store a first specified time set to form a beam in a first direction using the plurality of microphones, and a processor connected to the plurality of microphones and configured to receive a sound using the plurality of microphones, determine a direction corresponding to the received sound, and if the direction is equivalent to a second direction, associate a second specified time to the received sound as if a beam is formed in the second direction using the plurality of microphones.

Abstract: A receiver includes a first stage buffer, a second stage buffer and a third stage buffer. The first stage buffer includes an input portion electrically coupled to a first voltage node, and configured to change a voltage level of an output node in response to an input signal, first and second load portions electrically coupled between a second voltage node and the output node, and electrically coupled to each other and a duty cycle adjustment portion electrically coupled between the first and second load portions, and configured to provide a correction current to the output node through the first load portion.

Abstract: A receiver includes a first stage buffer, a second stage buffer and a third stage buffer. The first stage buffer includes an input portion electrically coupled to a first voltage node, and configured to change a voltage level of an output node in response to an input signal, first and second load portions electrically coupled between a second voltage node and the output node, and electrically coupled to each other and a duty cycle adjustment portion electrically coupled between the first and second load portions, and configured to provide a correction current to the output node through the first load portion.

Abstract: An amplification circuit includes an input portion, a first load portion, a second load portion, and a duty cycle adjustment portion. The input portion changes a voltage level of an output node, which outputs a voltage level thereof as an output signal, in response to an input signal. The first load portion and a second load portion are coupled to the output node. The duty cycle adjustment portion is coupled between the first load portion and the second load portion, and provides a correction current to the output node.

Abstract: An electronic device comprising: a microphone array including at least three microphones; and at least one processor configured to: identify a kind of an application that is executed; activate one or more of the microphones in the array based on each microphone's respective position within the electronic device and the type of the application; and capture audio using the activated microphones.

Abstract: An amplification circuit includes an input portion, a first load portion, a second load portion, and a duty cycle adjustment portion. The input portion changes a voltage level of an output node, which outputs a voltage level thereof as an output signal, in response to an input signal. The first load portion and a second load portion are coupled to the output node. The duty cycle adjustment portion is coupled between the first load portion and the second load portion, and provides a correction current to the output node.

Abstract: A method for selecting signals in a television receiver is disclosed. A plurality of jacks which are provided in the television receiver are automatically selected one by one, and a judgment is made as to whether external video and audio signals are inputted through the selected jack. If it is found that external video and audio signals are inputted through the selected jack, then an A/V mode which receives and processes the external video and audio signals of the selected jack is set up. If it is found that external video and audio signals are inputted through none of the jacks, then a message reading “check the connection state of the external video and audio signals” is outputted, and a television mode is set up to receive television broadcast signals. That is, in a state with the plugs of external apparatuses inserted into the respective jacks, the relevant external apparatus is activated. Then an A/V mode is set up, and the relevant jack is automatically selected.

Abstract: The present invention cloned a cDNA clone encoding isopentenyl diphosphate (hereafter “IPP”) isomerase (EC 5.3.3.2) from a cDNA library of Hevea brasiliensis latex. The clone has a continuous open reading frame encoding a peptide of 234 amino acids with a predicted molecular mass of 26.7 kDa. The deduced protein is acidic with an isoelectric point of 4.7 and shows high sequence identity with other IPP isomerases. The recombinant protein expressed in Escherichia coli showed IPP isomerase activity. In vitro rubber biosynthesis assays using washed rubber particle (WRP) deprived of initiating allylic diphosphates were performed with the addition of IPP isomerase in the reaction mixture. Results revealed that the recombinant IPP isomerase is catalytically active in catalyzing the conversion of IPP to DMAPP, a key activation step of the basic five-carbon isoprene unit in rubber biosynthesis. Southern analysis indicated that the IPP isomerase is encoded by two genes in Hevea rubber tree.

Abstract: The present invention relates to a frequency control apparatus for a television and a video cassette tape recorder, and more particularly to an automatic frequency control method wherein a frequency value of a voltage controlled oscillator is increased or decreased and stored by determining whether an oscillator is in a range capable of operating a phase locked loop when an oscillation frequency of the voltage controlled oscillator of the phase locked loop is not synchronized with the intermediate frequency when a frequency is automatically controlled by comparing phases and frequencies of the phase locked loop and the intermediate frequency.

Abstract: An apparatus and a method for controlling video/audio modes in a video/audio outputting apparatus is provided, in which the audio mode is automatically set in relation to the video mode selected by the user. A judgment is made whether an inputted working command code is a video mode code or an audio mode code. If the working command code thus judged is a video mode code, then it is judged whether it is a custom mode, a standard mode, a movie mode, a dynamic mode or a mild mode. Then a value is set to the video mode code thus judged, and at the same time, a value is set to the audio mode. Meanwhile, if the working command code thus judged is a an audio mode code, then it is judged as to whether it is a custom mode, a standard mode, a movie mode, a music mode or a soft mode. Then a value is set to the audio mode code thus judged.

Abstract: A method for removing the background noise during reception of weak electric field intensity signals. If the electric field intensity of television broadcast signals received by a main picture receiving section is weak, a PIP (picture in picture) function is released, and the release is displayed to notify it to the user. The electric field intensity of the received television broadcast signals is determined in accordance with the AGC signals of the television broadcast signals which are received by a main picture receiving section. If the electric field intensity is strong, the amplification gain of an LNA is adjusted to a low level, and a PIP function is executed or released, depending upon the user's selection of the PIP function. If the electric field intensity is weak, the amplification gain of an LNA is adjusted to a high level, and a determination is made as to whether the PIP function is being executed.

Abstract: A multi-television broadcasting signal receiving apparatus and method thereof are provided. In the apparatus, if aerially transmitted several television broadcasting signals are tuned and the tuned signal is inputted as an IF signal, a microcomputer outputs a different chrominance control signal according to the broadcasting system by using the input IF signal. A chrominance signal amplifying portion varies a color concentration of a detected signal according to the broadcasting system by the chrominance control signal output from the microcomputer so as to discriminate the broadcasting system. The color concentration is automatically corrected without the need of an extra correction circuit by correcting the color concentration of the broadcasting signal discriminated by a preprogrammed different gain according to the broadcasting system of the received signal. This effect can be applied to a television for receiving a plurality of broadcasting signals.

Abstract: A background-picture compensating circuit using an OSD signal for performing a half tone function without requiring a half tone circuit includes a video signal processor for separating a received composite video signal into R, G, B signals, a microcomputer for muting the R, G, B outputs of the video signal processor upon the receipt of an OSD character display key input to supply a signal for a background picture of the OSD character, and a CRT driver for amplifying respective R, G, B signals from the video signal processor or microcomputer to provide the amplified signals to a cathode of a CRT, in which the microcomputer supplies pulses of a high frequency in response to an input of the signal for the background picture of the OSD character to swiftly repeat On/Off operation of the output of the R, G, B signals of the video signal processor on the background picture of the OSD character for making the background picture level lower than a surrounding level, thereby enabling a display of both an original pict

Abstract: A method and device for displaying a back-screen in a video signal processing system does not require a separate back-screen generating circuit in order to display the back-screen. Instead, an on-screen signal for indicating characters is used to display the back-screen. A determination signal is detected to determine whether a video signal input is received, and if the input video signal is not received, a microcomputer generates an extended on-screen signal to display the back-screen. If the video signal input is detected during display of the back-screen, the extended on-screen signal is blocked, stopping display of the back-screen.