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3990 results about "Reproduction" patented technology

Reproduction (or procreation or breeding) is the biological process by which new individual organisms – "offspring" – are produced from their "parents". Reproduction is a fundamental feature of all known life; each individual organism exists as the result of reproduction. There are two forms of reproduction: asexual and sexual.

Binaural synthesis, head-related transfer functions, and uses thereof

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.

Trick play signal generation for a digital video recorder using retrieved intra-encoded pictures and generated inter-encoded pictures

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.

Dynamic equalizer

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.
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