9059 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.

When the information-provision apparatus is providing an audio signal to the specific information reproduction apparatus, the user enters an operation input to the specific information reproduction apparatus to switch processing to reproduce an audio content from the specific information reproduction apparatus to another information reproduction apparatus. In this case, the specific information reproduction apparatus requests the information-provision apparatus to start an operation of providing the audio content to the other information reproduction apparatus specified in the operation input as an apparatus to newly reproduce the audio content. Then, the specific information reproduction apparatus requests the information-provision apparatus to end an operation of providing the audio content to the specific information reproduction apparatus specified in the operation input as an apparatus to terminate an operation of reproducing the audio content.

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.