Abstract: Various embodiments described herein provide users with a fast and efficient way for identifying scenes for editing purposes. At least one embodiment is a method for editing video. The method comprises receiving a video with scenes to be edited, receiving a scene selection for editing, and partitioning the selected scene into subscenes based on the presence of subtitles, audio analysis, or a combination of both. The method further comprises identifying subscenes of interest, receiving editing commands for the subscenes of interest, and associating the editing commands with the video for future playback, wherein the video is left unmodified.

Abstract: A method provide a selection option to the at least one portable device, the selection option relating to selection of the first audio content and retrieving a selection from the at least one portable device based on the selection option. The method further retrieves a selection of the second audio content and synchronizing the first audio content, the second audio content, and the video content by embedding a synchronizing signal in the first audio content, the second audio content, and the video content. The method further outputs the second audio content and the video content to an output device according to the synchronizing signal. Responsive to the selection of the first audio content, the first audio content with the embedded synchronizing signal is transmitted to the least one portable device, wherein the at least one portable device outputs the first audio content according to the synchronizing signal.

Abstract: A fan includes an impeller, a motor, a plurality of first engaging members and a plurality of second engaging members. The impeller includes a hub and a plurality of blades disposed around the hub. The motor includes a rotor housing coupled with the hub, and the motor is for driving the impeller to rotate. The first engaging members are disposed on an inner side of the top surface of the hub, and the second engaging members are disposed on the top surface of the housing. When the impeller and the rotor housing are assembled, the second engaging members are disposed corresponding to the first engaging members, so that parts of the first engaging members are engaged into and assembled with the second engaging members.

Abstract: A channel buffering method is for dynamically altering a number of channels for an Internet protocol television (IPTV). The method is applicable for a home gateway (HG) having a channel section used for channel buffering. After the HG has received two consecutive channel-switching requests, the HG compares whether the two requests are similarly directed to switching a channel towards the same direction or not; if yes, a cumulative switching frequency is set, and two trimming numerical values are set through the cumulative switching frequency, and thus, the channel section for buffering the channels can be dynamically adjusted through the two trimming numerical values.

Abstract: Various embodiments described herein provide users with a fast and efficient way for identifying scenes for editing purposes. At least one embodiment is a method for editing video. The method comprises receiving a video with scenes to be edited, receiving a scene selection for editing, and partitioning the selected scene into subscenes based on the presence of subtitles, audio analysis, or a combination of both. The method further comprises identifying subscenes of interest, receiving editing commands for the subscenes of interest, and associating the editing commands with the video for future playback, wherein the video is left unmodified.

Abstract: An AV playback method for an interactive mechanism includes generating a designated file comprising a plurality of data created by a user and playback information comprising a play time and a display location of the data of the designated file, storing the designated file in a storage device through an interface provided by a first player, and the first player displaying each data in the designated file according to the corresponding play time and the display location indicated by the playback information while playing the multimedia film simultaneously. The data in the designated file is only displayed while the multimedia film is played, making no substantial change to the multimedia file itself.

Abstract: A fan includes an impeller, a motor, a plurality of first engaging members and a plurality of second engaging members. The impeller includes a hub and a plurality of blades disposed around the hub. The motor includes a rotor housing coupled with the hub, and the motor is for driving the impeller to rotate. The first engaging members are disposed on an inner side of the top surface of the hub, and the second engaging members are disposed on the top surface of the housing. When the impeller and the rotor housing are assembled, the second engaging members are disposed corresponding to the first engaging members, so that parts of the first engaging members are engaged into and assembled with the second engaging members.

Abstract: A channel buffering method is for dynamically altering a number of channels for an Internet protocol television (IPTV). The method is applicable for a home gateway (HG) having a channel section used for channel buffering. After the HG has received two consecutive channel-switching requests, the HG compares whether the two requests are similarly directed to switching a channel towards the same direction or not; if yes, a cumulative switching frequency is set, and two trimming numerical values are set through the cumulative switching frequency, and thus, the channel section for buffering the channels can be dynamically adjusted through the two trimming numerical values.

Abstract: A walkie-talkie device applies a continuous tone-coded squelch system (CTCSS) to control signal transmission. The walkie-talkie device has an analog-to-digital converter, a digital signal processor, and a digital-to-analog converter. The signal processing method includes using the analog-to-digital converter to convert a first analog signal into a first digital signal, using the digital signal processor to handle a CTCSS tone related to the first digital signal for generating a second digital signal, and using the digital-to-analog converter to convert the second digital signal into a second analog signal. The walkie-talkie device uses the CTCSS tone to discriminate a required speech signal from other speech signals transmitted by the same physical channel.

Abstract: A method for detecting a tone signal having a predetermined tone frequency includes receiving an analog communication signal, using a sampling frequency to convert the analog communication signal into a digital communication signal, selecting a plurality of signal sectors corresponding to a predetermined frequency range of the digital communication signal where the predetermined tone frequency agrees with the predetermined frequency range, and using the number of samples of each signal sector to determine whether the analog communication signal contains the tone signal.

Abstract: A walkie-talkie device applies a continuous tone-coded squelch system (CTCSS) to control signal transmission. The walkie-talkie device has an analog-to-digital converter, a digital signal processor, and a digital-to-analog converter. The signal processing method includes using the analog-to-digital converter to convert a first analog signal into a first digital signal, using the digital signal processor to handle a CTCSS tone related to the first digital signal for generating a second digital signal, and using the digital-to-analog converter to convert the second digital signal into a second analog signal. The walkie-talkie device uses the CTCSS tone to discriminate a required speech signal from other speech signals transmitted by the same physical channel.

Abstract: A method for detecting a tone signal having a predetermined tone frequency includes receiving an analog communication signal, using a sampling frequency to convert the analog communication signal into a digital communication signal, selecting a plurality of signal sectors corresponding to a predetermined frequency range of the digital communication signal where the predetermined tone frequency agrees with the predetermined frequency range, and using the number of samples of each signal sector to determine whether the analog communication signal contains the tone signal.

Abstract: This invention is a method for cleaning a semiconductor manufacturing system, which passes a highly volatile liquid agent through the system to remove the impurities and to dissolve chemicals used in the system. The cleaning agent dissolves and washes the chemicals out of the system to keep the chemicals from combining with moisture in the air and forming oxide particles. By washing with a liquid, residual gases and impurities in the system are rapidly removed from the system. After washing the system, the cleaning agent is quickly dried because the cleaning agent is highly volatile. Thereby, the system is cleaned efficiently within a short time by using this method.

Abstract: A USB/UART converter connected between a DTE and a DCE is disclosed. The USB/UART converter comprises: a USB controller connected to a USB of the DTE, and a UART controller connected to the DCE and the USB controller. According to the present invention, the control signals for the DCE and the parameter settings for the UART controller are sent from the DTE through the USB controller in a control transfer mode. Then, the UART controller transfers the status signals through the USB controller to the DTE in an interrupt transfer mode after detecting the status signals coming from the DCE. Subsequently, the data can be transferred between the DTE and the DCE in an isochronous data transfer mode in response to the parameters.

Abstract: A method and apparatus for noise burst detection in a signal processor is provided. The method and apparatus is based on the zero-crossing rate (ZCR) of the received signal, which is defined as the number of times the magnitude of the received signal becomes zero during a specific counting period, to determine whether the received signal is a noise or a normal signal. The received signal is sampled at a specified sampling rate. Whether the signal waveform undergoes a zero-crossing is determined by comparing the polarity of the current sampled magnitude with that of the previous one. If the polarities are different, it indicates that the signal waveform has undergone a zero-crossing during the current sampling period; otherwise, it indicates that the signal waveform has not undergone a zero-crossing. The count of zero-crossing during each counting period is compared with a preset threshold value.

Abstract: A stand-alone, real-time voice recognition system, which converts an analog voice signal into serial digital signal, then preprocesses in parallel the digital signal to detect the end-point, and output fixed multi-order prediction coefficients. In this recognition system, these multi-order prediction coefficients are stored as the reference pattern in the training mode. In recognition mode, these multi-order prediction coefficients are adapted by dynamic time warping method, which is modified by a symmetric form. This symmetric form is implemented with a one-dimensional circular buffer for dynamic programming matching instead of the traditional two-dimensional buffer to save memory space. Finally, these adapted coefficients are compared with reference pattern to output the result of recognition.

Abstract: The present invention comprises an interpolation circuit for performing a linear interpolation operation for a voice synthesizer receiving a plurality of frames of voice data wherein each frame is subdivided into a plurality of sub frames with each sub frame being assigned with a predefined interpolation weighting factor. The interpolation circuit comprises an input port for receiving a plurality of sub frame voice data to be interpolated wherein said sub frame data are received in a predefined order. The interpolation circuit further includes a read-only-memory (ROM) for storing a plurality of multiplications of each of the plurality of sub frame voice data to each of the weighting factors and a read-only-memory (ROM) address generator capable of determining a address in ROM utilizing the sub frame voice data received from the input port and the predefined order of the frame and the sub frame thereof when the voice data is being received.

Abstract: A digital speech encoder and decoder have particular application to the field of 16 kbps digital communications. In the encoder, a speech signal is processed by a perceptual weighting filter, using a reconstructed speech signal, a reconstructed residual signal, and a set of filter tuning coefficients. A predictive signal, which is generated by a Short Term Predictive (STP) circuit, is subtracted from the signal outputted from the perceptual weighting filter. The difference signal is processed by a coder/decoder circuit to produce a reconstructed error signal, which is added to the predictive signal to form the reconstructed residual signal. A Linear Predictive Coding (LPC) circuit receives the reconstructed residual signal and develops the set of filter tuning coefficients. The set of filter tuning coefficients are outputted to the STP circuit, which also receives the reconstructed residual signal, and thereby generates the predictive signal.

Abstract: A baby cry recognizer is disclosed which includes an amplifier circuit for amplifying a received sound signal. In response to the amplified sound signal, a pulse generator circuit generates a pulse signal having zero crossings which are aligned with zero crossings of the amplified sound signal. The pulse signal, in turn, is inputted to a signal recognition circuit. The signal recognition circuit is capable of obtaining the zero crossing rate of the pulse signal during each of a preselected number of frames in a predetermined length time interval. The signal recognition circuit then determines if the zero crossing rate of the pulse signal, in more than a first threshold number of this preselected number of frames, is within a particular frequency range. The signal recognition circuit also determines if the zero crossing rate of the pulse signal over the entire time interval is greater than or equal to a second low threshold but less than or equal to a third high threshold.