124results about "Analogue recording/reproducing" patented technology

An apparatus for providing dynamic equalizer optimization is disclosed. The present invention solves the above-described problems by providing equalizer coefficient updates that converge towards the same solution as the direct method without having to first write a known pattern to the disk or requiring any prior knowledge of the data already written on the disk. The adaptive cosine function may be used to modify only a DFIR tap set, only the j and k parameters of a cosine equalizer or to modify both the tap set for a DFIR filter and the j and k parameters of the cosine equalizer. Another algorithm, such as the LMS algorithm, may be used to modify parameters not modified by the cosine algorithm.

A playback apparatus used for an audio database includes a first acquisition unit configured to acquire first position information and second position information, an estimation unit configured to estimate a required period from a first position to a second position based on the first position information and the second position information, a second acquisition unit configured to acquire a data length of an audio signal to be played back from the audio database, a determination unit configured to determine a playback speed required to play back the audio signal based on the required period and the data length to complete playback of the audio signal within the required period, and a playback unit configured to play back the audio signal according to the playback speed.

Integrated processing of multimedia signals can eliminate unnecessary signal processors and converters without losing the functionality of typical home entertainment system components. The integrated multimedia system includes a main player that captures and processes signals digitally. The main player may adjust the audio signal to provide audio output of equal loudness across all frequencies by accounting for sensitivity of the human ear for sounds of varying frequencies. The main player can also account for perceived differences in loudness based on the angle of a listener to a speaker by detecting the position of a user and making an adjustment accordingly. The invention further provides a speaker that has embedded performance characteristics or an identifier that allows the system to provide an optimal speaker driving current for a particular system or determine how that speaker would be best implemented in the integrated system.

The information reproduction device for reproducing contents information based on license information added to the contents information and required for reproducing the contents information, includes a determining section for determining whether encrypted contents information is the officially copied contents information or privately copied contents information based on the contents of the license information, and a reproduction section configured to reproduce the contents information determined as the privately copied contents information by the determining section under more severe restriction than the officially copied contents information. Thus, the contents copied by the proper route (officially copied contents) can be distributed in a more advantageous form than the contents copied without proper authorization.

A four-channel high-capacity waveform storage system comprises an FPGA core chip, an FPGA core chip minimum peripheral circuit, ADC sampling chips, a Flash array, an internet port circuit and a power supply chip. 9A, 9B, 9C and 9D in the power supply chip convert a 5V power voltage into a 3.3V voltage, a 1.8V voltage, a 1.0V voltage and a 2.5V voltage respectively for other modules to use; after being normally powered on, the FPGA core chip controls the four paths of ADC sampling chips to collect waveform data from an external input interface and transmits the data to the Flash array; after storage, the FPGA core chip controls the internet port circuit to transmit the data in the Flash array to an upper computer through an internet port; all control instructions are transmitted to the FPGA core chip by the upper computer through a network interface. A construction method of the four-channel high-capacity waveform storage system includes seven steps. According to the four-channel high-capacity waveform storage system and the construction method, multiple paths of waveform data can be integrally and simultaneously collected, and implementation is simple; the logical functions are all written in a VHDL and easy to modify; the four-channel high-capacity waveform storage system is small in size and can be conveniently applied to multiple systems.

Integrated processing of multimedia signals can eliminate unnecessary signal processors and converters without losing the functionality of typical home entertainment system components. The integrated multimedia system includes a main player that captures and processes signals digitally. The main player may adjust the audio signal to provide audio output of equal loudness across all frequencies by accounting for sensitivity of the human ear for sounds of varying frequencies. The main player can also account for perceived differences in loudness based on the angle of a listener to a speaker by detecting the position of a user and making an adjustment accordingly. The invention further provides a speaker that has embedded performance characteristics or an identifier that allows the system to provide an optimal speaker driving current for a particular system or determine how that speaker would be best implemented in the integrated system.

According to one embodiment, video image and voice signals are transmitted to a plurality of electronic devices each having at least one of a video image display function and a voice reproducing function. Information indicating the fact that at least one of a video image and a voice has been set in a mute state is acquired from each of the electronic devices. Based on the information, a processing operation is applied to the video image and voice signals supplied to each of the electronic devices.

A semiconductor device including an interrupt pattern generator for generating an interrupt enabling signal and interrupt data, an input buffer for receiving input serial data, a selector, receiving through-data serially output from said input buffer and serial data obtained on parallel-to-serial conversion of said interrupt data, for selecting and serially outputting said through-data when said interrupt enabling signal is in an inactive state, and for selecting and serially outputting said interrupt data when said interrupt enabling signal is in an active state, and a circuit exercising control for instructing said interrupt pattern generator to generate said interrupt data and to activate said interrupt enabling signal in case the information instructing the merging of said interrupt data in a predetermined position of said through-data is detected from said input serial data.

Integrated processing of multimedia signals can eliminate unnecessary signal processors and converters without losing the functionality of typical home entertainment system components. The integrated multimedia system includes a main player that captures and processes signals digitally. The main player may adjust the audio signal to provide audio output of equal loudness across all frequencies by accounting for sensitivity of the human ear for sounds of varying frequencies. The main player can also account for perceived differences in loudness based on the angle of a listener to a speaker by detecting the position of a user and making an adjustment accordingly. The invention further provides a speaker that has embedded performance characteristics or an identifier that allows the system to provide an optimal speaker driving current for a particular system or determine how that speaker would be best implemented in the integrated system.

A method of setting an equalizer so as to enlarge a sound field in reproducing an audio file and a method of reproducing an audio file thereby, includes: dividing an input audio file into segments with a predetermined time length; extracting an audio feature value for each segment; determining equalizer information for reproducing each segment by the use of the extracted feature value; and determining an equalizer sequence for the audio file by the use of the determined equalizer information of each segment. Since the equalizer setting information can be automatically changed without user manipulation, the user can listen to an audio file of which the sound field is dynamically enlarged.

Disclosed is a method for reproducing a music file in a terminal equipped to reproduce the music file, the method including determining equalizing reproduction characteristics of the music file when reproduction of the music file is requested, determining and setting an output equalizer setting value of an audio signal, according to the equalizing reproduction characteristics and pre-measured individual hearing ability state information representing hearing ability characteristics of a user, and reproducing the music file so as to output the audio signal according to the output equalizer setting value.