3990 results about "Reproduction" patented technology

A prefilter (5) for an audio system comprising a loudspeaker (1) in a room (2), which corrects both amplitude and phase errors due to the loudspeaker (1) by a linear phase correction filter response and corrects the amplitude response of the room (2) whilst introducing the minimum possible amount of extra phase distortion by employing a minimum phase correction filter stage. A test signal generator (8) generates a signal comprising a periodic frequency sweep with a greater phase repetition period than the frequency repetition period. A microphone (7) positioned at various points in the room (2) measures the audio signal processed by the room (2) and loudspeaker (1), and a coefficient calculator (6) (e.g. a digital signal processor device) derives the signal response of the room and thereby a requisite minimum phase correction to be cascaded with the linear phase correction already calculated for the loudspeaker (1). Filter (5) may comprise the same digital signal processor as the coefficient calculator (6). Applications in high fidelity audio reproduction, and in car stereo reproduction.

The present invention provides a method and apparatus for the production and labeling of objects in a manner suitable for the prevention and detection of counterfeiting. Thus, the system incorporates a variety of features that make unauthorized reproduction difficult. In addition, the present invention provides an efficient means for the production of labels and verification of authenticity, whereby a recording apparatus which includes a recording medium, having anisotrophic optical domains, along with a means for transferring a portion of the recording medium to a carrier, wherein a bulk portion of the recording medium has macroscopically detectable anisotrophic optical properties and the detecting apparatus thereon.

Disclosed herein is a portable type content reproducing device for reproducing content data, said portable type content reproducing device including, a radio communication unit, a nonvolatile storage unit, a reproduction processing unit, a connection controlling unit, and a reception controlling unit.

A system and method are provided for smoothing the in-room acoustic magnitude response of an audio reproduction system. An in-room acoustic magnitude response analysis is performed to determine a room resonance induced peak associated with an audio signal. A replica of the audio signal is filtered at the room resonance induced peak. The filtered replica signal is added with the audio signal. Through this, smoothing of the room resonance induced peak may be achieved, such that a subjective impression of transient response and dynamics of the audio signal are preserved.

An information-processing apparatus is connectable to a reproduction apparatus and includes: storage sections each for storing contents and for storing a host database having attributes of each of the contents stored in the content storage section; a section for identifying contents stored in the reproduction apparatus; a section for extracting the attributes of each of the identified contents from the host database; a section for creating plural tables provided with different types and each put in a layer structure having the titles of the identified contents as a lowest-level layer and the name of each group having some of the identified contents as a high-level layer based on the extracted attributes; and a section for transferring the created tables including at least a first table showing titles arranged in accordance with a first rule as the titles of the identified contents and a second table showing titles, which are arranged in accordance with a second rule as the titles of the identified contents, for the name of every group including some of the identified contents.

The present invention provides a method and apparatus for the production and labeling of objects in a manner suitable for the prevention and detection of counterfeiting. Thus, the system incorporates a variety of features that make unauthorized reproduction difficult. In addition, the present invention provides a system and method for providing a dynamically reconfigurable watermark, and the use of the watermark to encode a stochastically variable property of the carrier medium for self-authentication purposes.

A mobile phone with music reproduction function has a reproduction unit that reproduces music data and a ring tone which are recorded in a music data recording medium, and a communication unit 108 that detects an incoming call from outside. The mobile phone 100 has a control unit that instructs the reproduction unit to perform a fade-out process of reproducing the music data and to perform a fade-in process of outputting the ring tone when the communication unit detects an incoming call while the reproduction unit is reproducing music data.

A two-channel phase-amplitude stereo encoding and decoding scheme enabling flexible and spatially accurate interactive 3-D audio reproduction via standard audio-only two-channel transmission. The encoding scheme allows associating a 2-D or 3-D positional localization to each of a plurality of sound sources by use of frequency independent inter-channel phase and amplitude differences. The decoder is based on frequency-domain spatial analysis of 2-D or 3-D directional cues in a two-channel stereo signal and re-synthesis of these cues using any preferred spatialization technique, thereby allowing faithful reproduction of positional audio cues and reverberation or ambient cues over arbitrary multi-channel loudspeaker reproduction formats or over headphones, while preserving source separation despite the intermediate encoding over only two audio channels.

Audiovisual reproduction system comprising a central unit managing a sound control circuit, and a telecommunications modem connected to a distribution network controlled by a host server, through a multitask operating system created around a tools and services library, characterized in that the operating system comprises a function that adjusts the sound control circuit to couple volumes in the various areas in which the loudspeakers in the audiovisual reproduction system are used, this function being accessible through a management mode of the multitask operating system, the coupling maintaining the ratios between the various volumes in each area when the volume in one area is modified.

PCT No. PCT/DK95/00089 Sec. 371 Date Dec. 27, 1996 Sec. 102(e) Date Dec. 27, 1996 PCT Filed Feb. 27, 1995 PCT Pub. No. WO95/23493 PCT Pub. Date Aug. 31, 1995A method and apparatus for simulating the transmission of sound from sound sources to the ear canals of a listener encompasses novel head-related transfer functions (HTFs), novel methods of measuring and processing HTFs, and novel methods of changing or maintaining the directions of the sound sources as perceived by the listener. The measurement methods enable the measurement and construction of HTFs for which the time domain descriptions are surprisingly short, and for which the differences between listeners are surprisingly small. The novel HTFs can be exploited in any application concerning the simulation of sound transmission, measurement, simulation, or reproduction. The invention is particularly advantageous in the field of binaural synthesis, specifically, the creation, by means of two sound sources, of the perception in the listener of listening to sound generated by a multichannel sound system. It is also particularly useful in the designing of electronic filters used, for example, in virtual reality systems, and in the designing of an "artificial head" having HTFs that approximate the HTFs of the invention as closely as possible in order to make the best possible representation of humans by the artificial head, thereby making artificial head recordings of optimal quality.

A system and method for creating an integrated digital media management and reproduction device comprised of a database with key data values for a plurality of records, and a module with search controls that include sets of compound parallel attribute queries that can execute instructions for a data category, and concurrently retrieve and display records across a plurality of related categories—thereby revealing the associations between discrete records. The invention also has a plurality of software instantiated media players which, through instructions managed by a “master container” design, function as if they were dynamically aware of user actions and the quantifiable states of each other player object—and respond according to logic rules, visually guiding event workflow. The system has a memory module for storing query information, a processor configured to retrieve data, a display unit for retrieved data and a digital-to-analog converter for providing capability for connection to loudspeakers.

A method and apparatus processes multi-channel audio by encoding, transmitting or recording “dry” audio tracks or “stems” in synchronous relationship with time-variable metadata controlled by a content producer and representing a desired degree and quality of diffusion. Audio tracks are compressed and transmitted in connection with synchronized metadata representing diffusion and preferably also mix and delay parameters. The separation of audio stems from diffusion metadata facilitates the customization of playback at the receiver, taking into account the characteristics of local playback environment.

A trick play information stream is generated from a normal play information stream, so that they can be recorded together as a composite information stream on the record carrier, such that upon reproduction in a trick play reproduction mode, an information signal of sufficient quality, e.g., as regards visibility, can be obtained. GOPs are generated, each GOP including an I-frame retrieved from the original normal play information stream, and one or more so-called "empty P frames'. Another aspect is the requirement of generating GOPs for the trick play information stream that have a constant bitcost per GOP. Again, another aspect lies in the retrieval of the I-frame for the trick play information stream from the normal play information. More specifically, an I-frame is generated by retrieving, from an I-frame included in the normal play information, the DC coefficient of the I-frame and a number of AC coefficients from that I frame, and generating the I-frame for the trick play information stream therefrom. More specifically, the number of AC coefficients for an I-frame of the trick play information signal depends on the difference between the DC coefficients of two subsequent I-frames in the normal play information from which the I-frame to be generated and the just previously generated I-frame for the trick play information signal have been derived.

A dynamic equalization system 12 for use in audio reproduction systems. The apparatus includes a chirp tone generator 38 which produces a tone having multiple frequencies. The chirp tone is broadcast into the listening space 10 from a transducer 14. The broadcast chirp tone is monitored by a second transducer 22 at the listening position to produce a received chirp tone. The received tone and the original tone are compared in a coefficient computer 44 connected to a programmable equalizer 42. The equalizer 42 uses the signal from the coefficient computer to compensate for irregularities 47 in listening space 10 and transducer 14 to produce a substantially undistorted listening experience from source 28 in listening space 10. The first step of the method of the invention is generation of a chirp tone. The chirp tone includes multiple frequencies. The chirp tone is broadcast into the listening space from a transducer placed at the selected transducer position. The broadcast chirp tone is next monitored by a transducer at the listening position to produce a received chirp tone. The received tone is then compared to the generated chirp tone and differences noted. The differences are used to program an equalizer for correction of sound. The process is done for each position where a transducer is located. Finally, sound from a program source is routed through the equalizer to the transducers for a corrected sound.

The invention discloses a new regenerating method of waste elastics and plastic, which comprises the following steps: 1. blending waste elastics or/and plastic with grain size between 5 and 80 order and non-polluted regenerative adjuvant according to proportion; placing into the manufacturing machine; grinding; sieving; heating to desulfurize; bulking; soaping; emulsifying; kneading; pressing; graining; obtaining composite product 1 with mother material or mother particle or mother gel of plastic elastic powder; 2. weighing product 1 and non-polluted mating agent into mixing machine according to proportion; kneading; blending evenly; pressing; graining; obtaining the product 2 of mother material or mother particle or mother gel with 5-95% waste elastic or/and plastic.

The present invention provides a music playback system which uses an interface to easily play back a characteristic musical structure section with a music audio data playback apparatus. The interface 13 includes a function of selecting an arbitrary characteristic music structure section from a plurality of characteristic music structure sections, and a function of visualizing a characteristic music structure section. The characteristic music structure section specifying data for specifying the selected arbitrary characteristic music structure section is given to a music audio data playback apparatus 3. The music audio data playback apparatus 3 changes a playback position of the music audio data to the characteristic music structure section specified by the characteristic music structure section specifying data given by a specifying data providing means 12.

A vehicle dynamics behavior reproduction system capable of describing accurately behavior of a motor vehicle in a lateral direction even for nonlinear driving situation includes a vertical wheel force arithmetic means (105), a lateral wheel force arithmetic means (110), a cornering stiffness adaptation means (115), a state space model/observer unit (120), a selector (130), a delay means (135), and a tire side slip angle arithmetic means (125). Vertical wheel forces (F_Zij) and tire side slip angles (α_ij) are determined by using sensor information and estimated values while lateral wheel forces (F_Yij) are determined in accordance with a relatively simple nonlinear approximation equation. The lateral wheel force (F_Yij) and the tire side slip angle (α_ij) provide bases for adaptation of cornering stiffnesses at individual wheels. Vehicle motion is accurately described to a marginal stability by using adapted cornering stiffnesses (C_ij) and other information.

In a file structure for a streaming service and a method for providing a streaming service, a file structure includes a header object having basic information about a file and information for an application service, a data object synchronizing multimedia data with temporal information and storing it, and a key index object storing an offset and temporal information of a video block having a key frame in video blocks as a basis on a time axis for random access and reproduction. Accordingly, data can be transmitted quickly by not including unnecessary additional data, an application region can be expanded by including other media file besides a video and an audio files, because a random access and random reproduction by key index information are possible, it is possible to support various reproduction functions such as a fast play, a reverse play and random reproduction, etc.

A networked system is provided for transporting digital media packets, such as audio and video. The network includes network devices interconnected to send and receive packets. Each network device can receive and transmit media signals from media devices. A master clock generates a system time signal that the network devices use, together with a network time protocol to generate a local clock signal synchronised to the system time signal for both rate and offset. The local clock signal governs both the rate and offset of the received or transmitted media signals. The system, which can be implemented using conventional network equipment enables media signals to be transported to meet quality and timing requirements for high quality audio and video reproduction.

The object of the present invention is to eliminate hitherto restrictive conditions related to photography, like when attempting to register pictures with infinite depth of field, more or less, or attempt full detail-reproduction of light and shade. This is, according to the present invention, accomplished by making several recordings with differing states of focus or exposure, the images registered being similarly subdivided into smaller image-parts and a resultant image bing produced by selecting those image-parts from each set, being most suitable. Optimal image definition of an image-part can for instance be assessed by contrast-measurement techniques or separate range-finding with a laser. An analogous optimal representation of image detail can also be achieved.

The invention relates to an apparatus for sound reproduction of a sound information signal having spatial components, the apparatus includes: sound input means adapted to input the sound information signal; headtracking means for tracking a current head orientation of a listener listening to the sound information signal via sound emission sources and to produce a corresponding head orientation signal; sound information rotation means connected to the sound input means and the headtracking means and adapted to rotate said sound information signal to a substantially opposite degree to the degree of orientation of said current head orientation of the listener to produce a rotated sound information signal; and sound conversion means connected to the sound information rotation means for converting the rotated sound information signal to corresponding sound emission signals for outputting by the sound emission sources such that the spatial components of the sound information signal are substantially maintained in the presence of movement of the orientation of head of the listener.

A method and apparatus in a sound-reproduction system, in which method an electrical calibration signal is formed, an audio signal is formed in the loudspeaker from the calibration signal, the response of the audio signal is measured and analysed, and the loudspeaker system is adjusted on the basis of the measurement results. The operator is permitted to made additional alterations to the settings of the loudspeaker system on the basis of the measurement performed, the effects of the alterations are calculated and displayed to the operator without additional measurements, and the additional settings are implemented in real time in the loudspeaker system.

The certification system and method acquires, records and then authenticates a voice communication between communicating parties by a service provider in a telecommunication system. The system acquires, maintains custody over, controls access to, and permits modification, supplementation and deletion of recorded communications session, and distributes a reproduction of an authenticated recording. The authenticated record includes the authenticated identity AU-ID of the parties which is ascertained and documented at the time of acquisition, upon any access, modification or supplementation to the recording and at the time of authentication. AU-ID is adjunct data to the recording. The supplemented recording may include a translation, a transcription and an emotional characteristic.

A frequency-domain method for format conversion or reproduction of 2-channel or multi-channel audio signals such as recordings is described. The reproduction is based on spatial analysis of directional cues in the input audio signal and conversion of these cues into audio output signal cues for two or more channels in the frequency domain.

A new approach to tracking head motion for headphone-based sound is described. Called MTB2.0 for “Motion-Tracked Binaural with 2 Channels”, the method may be used for any 2-channel binaural signals without any increase in the bandwidth requirement. MTB2.0 provides a simple and effective means to improve the quality of headphone-based sound reproduction by sensing the orientation of the listener's head and using the sensed orientation to appropriately modify the signals sent to the two ears. MTB2.0 method increases the realism and removes some of the shortcomings of binaural sound capture and recording, as well as improves the quality of binaural rendering of stereo.

There is provided a music editing apparatus for remix reproducing a plurality of sound materials, each formed from part or the entirety of a music piece, in combination, including a reproduction pattern control section, a reproduction speed control section; and a pitch control section.

A combination equalizer and calibrator circuit assembly includes a calibrator formed of a frequency control circuit, a signal generator, an amplifier circuit connected with a microphone, a compare circuit and a display circuit and connected to the front end of an equalizer set. Calibration is made through the calibrator prior to audio system reproduction, wherein the frequency control circuit provides a reference frequency and different test frequencies for causing the signal generator to generate respective sound signals for output through a speaker; the microphone picks up these sound signals for comparison with respective reference values by the compare circuit; and the display circuit displays the respective comparison results. By means of adjustment through respective adjust circuits, signals of test frequencies are standardized so that the music played through the audio system is well calibrated without sound spectrum distortion due to space or audio system discrepancy.

A shadow network, which can be a virtual reproduction of a real, physical, base computer network, is described. Shadow networks duplicate the topology, services, host, and network traffic of the base network using shadow hosts, which are low interaction, minimal-resource-using host emulators. The shadow networks are connected to the base network through virtual switches, etc. in order to form a large obfuscated network. When a hacker probes into a host emulator, a more resource-intensive virtual machine can be swapped in to take its place. When a connection is attempted from a host emulator to a physical computer, the a host emulator can step in to take the place of the physical computer, and software defined networking (SDN) can prevent collisions between the duplicated IP addresses. Replicating the shadow networks within the network introduces problems for hackers and allows a system administrator easier ways to identify intrusions.

In order to reproduce music suitable for a situation where a user listens to the music while performing repetitive exercise, if a walking tempo value sensed by a walking tempo sensing portion 3 falls outside a certain range defined on the basis of a music tempo value of a music data file currently being reproduced by a music data reproduction portion 6, a music tempo specifying portion 4 specifies a music tempo value agreeing with the walking tempo value. A reproduction control portion 5 selects a music data file having a music tempo value corresponding to the music tempo specified by the music tempo specifying portion 4 from among a plurality of music data files stored along with data on music tempo of the respective music data files in a data storage portion 2, and causes the music data reproduction portion 6 to start the reproduction of the selected music data file.

A digital camera system includes: a digital camera 1 that wirelessly transmits raw data from an image capturing unit 11 and information of the image capturing unit 11; and a server center 2 that receives them via Internet and executes interpolation, white balance adjustment, edge emphasis, subsampling and compression with them. The digital camera 1 generates thumbnail images or small size reproduction images by subsampling the identical raw data and stores them in relation to the raw data which have been transmitted. The digital camera 1 is constituted as a portable telephone integrated digital camera, and the transmission of image and the storage and the display of post-subsampling data are achieved by utilizing the standard functions of the portable telephone.