专利检索_..脉冲调制记录或重现的（脉冲编码调制记录的入G11B20/10）专利检索_..脉冲调制记录或重现的（脉冲编码调制记录的入G11B20/10）专利检索查询_..脉冲调制记录或重现的（脉冲编码调制记录的入G11B20/10）专利检索查询分析平台

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
201	Eljárás és berendezés audio jel kialakítására, és eljárás az audio jel volumenének beállítására	HUE13733566	2013-01-03	HUE039653T2	2019-01-28	KWAK SANG-YEOP

202		AT04019256	2002-12-09	AT499679T	2011-03-15	AHN YONG JIN; PARK IN-SIK; LEE KYUNG-GEUN; YANG CHANG-JIN; OTSUKA TATSUHIRO; YOON DU-SEOP; KIM SEONG-SUE; KO JUNG-WAN
An apparatus for recording data on an optical recording medium (200), the apparatus comprising: a recording waveform generator (2) for generating a recording waveform having an erase pattern (F) including a multi-pulse; and a pickup unit (1) for radiating light onto the optical recording medium (200) according to the generated recording waveform to form a mark or a space.
203		DE60132380	2001-09-28	DE60132380T2	2009-01-02	YAMADA KATSUYUKI; NARUMI SHINYA; HARIGAYA MAKOTO; TANI KATSUHIKO; IWATA NORIYUKI; ONAGI NOBUAKI; ITO KAZUNORI; SHIBAGUCHI TAKASHI; HIBINO EIKO; YUZURIHARA HAJIME; OHKURA HIROKO; SHIMOFUKU AKIRA; NAKAMURA YUKI
A phase change type optical information recording medium comprising a recording layer made from a phase change recording material that changes between an amorphous state and a crystalline state based on irradiation of an electromagnetic beam, wherein the phase change recording material includes at least one element selected from Ag, In, Sb and Te, and the bond coordination number of the selected element/s is different between an amorphous state after a film formation and a crystalline state after an initialisation and after an information erasing.
204	METODO Y APARATO PARA GRABAR DATOS EN MEDIO OPTICO DE GRABACION.	MXPA02012428	2002-12-13	MXPA02012428A	2007-11-08	YOON DU-SEOP; KO JUNG-WAN; PARK IN-SIK; LEE KYUNG-GEUN; AHN YONG JIN; YANG CHANG-JIN; OTSUKA TATSUHIRO; KIM SEONG-SUE
Se proporcionan un metodo y aparato para grabar datos en un medio optico de grabacion. En el metodo para grabar datos en el medio optico de grabacion, se forma una marca o espacio usando una forma de onda de grabacion que tiene un patron de borrado que incluye un impulso predeterminado cuyo alto nivel es mayor que el nivel de potencia de borrado y cuyo bajo nivel es menor que el nivel de potencia de borrado. De esta manera, se puede impedir que la forma de la marca se distorsione y se mejore, lo que da por resultado una mejora en las caracteristicas de grabacion/reproduccion.
205	Method and apparatus for recording data on opticalrecording medium	SG200403773	2002-11-06	SG120985A1	2006-04-26	AHN YONG-JIN; PARK IN-SIK; LEE KYUNG-GEUN; YANG CHANG-JIN; OTSUKA TATSUHIRO; YOON DU-SEOP; KIM SEONG-SUE; KO JUNG-WAN
An apparatus for recording data on an optical recording medium (200), the apparatus comprising: a recording waveform generator (2) for generating a recording waveform having an erase pattern (F) including a multi-pulse; and a pickup unit (1) for radiating light onto the optical recording medium (200) according to the generated recording waveform to form a mark or a space.
206	СПОСОБ И УСТРОЙСТВО ДЛЯ ЗАПИСИ ДАННЫХ НА ОПТИЧЕСКИЙ НОСИТЕЛЬ ЗАПИСИ	RU2004126604	2004-09-01	RU2004126604A	2006-02-10

207	METHOD AND APPARATUS FOR RECORDING DATA ON OPTICAL RECORDINGMEDIUM	CA2414172	2002-12-13	CA2414172A1	2003-08-25	PARK IN-SIK; AHN YONG-JIN; KO JUNG-WAN; KIM SEONG-SUE; OTSUKA TATSUHIRO; LEE KYUNG-GEUN; YANG CHANG-JIN; YOON DU-SEOP
A method and apparatus for recording data on an optical recording medium a re provided. In the method of recording data on the optical recording medium, a mark or a space is formed using a recording waveform having an erase pattern includi ng a predetermined pulse whose high level is higher than an erase power level and whose low level is lower than the erase power level. Thus, the shape of the mark c an be prevented from being distorted and be improved, which results in an improvement in the recording/reproducing characteristics.
208		AT97902520	1997-02-14	AT246837T	2003-08-15	SPRUIT JOHANNES HENDRIK MARIA
A recording layer of rewritable phase-change material is directly overwritten by a pulsing laser spot irradiating at a writing power level, then irradiating at a lower cool-down power level during a cool-down period, and then irradiating at an erasing level with a higher power than the cool-down level. The duration of the cool-down period depends on the spot size and/or on the linear velocity of the spot with respect to the recording layer.
209	PROCESS OF RECORDING AND PLAYBACK OF INFORMATION ON MAGNETIC STRIPS AND CORRESPONDING DEVICE FOR READING AND RECORDING	RU98117217	1996-10-25	RU2183858C2	2002-06-20	ZANETTI DZHANKARLO
recording and playback of audio and video signals recorded on magnetic strip. SUBSTANCE: sequence of time marks is distributed along magnetic strip. Time marks determine recording blocks and specified time interval T for playback of each mentioned block. Reading device moved by hand is meant for reading of specified recording and sequence of time marks and for formation of first signal of reading of recording and second periodic signal of reading of sequence of time marks. Storage is designed to store ordered sequence of retrievals of abovementioned first signal. Reading of above-mentioned stored retrievals in order related to order of recording is carried out at next second stage. Playback unit is connected to storage to receive specified retrievals of signal and to convert them to acoustic and/or video signal. Control and synchronization unit is connected to reading device to receive second reading signal and to storage for alternating control over frequency of periodic recording in storage and over frequency of periodic reading from storage. In process of recording number of retrievals presenting reading device is maintained in the course of period of specified second signal. In process of reading number of retrievals presenting reading device is read in the course of specified time interval T. EFFECT: raised quality of playback of signal when reading device moved by hand is used. 10 cl, 10 dwg
210		DE69620354	1996-12-02	DE69620354D1	2002-05-08	REED DAVID E; BLISS WILLIAM G
A sampled amplitude read channel reads user data and embedded servo data stored on a magnetic medium by detecting digital data from a sequence of discrete time interpolated sample values. A write frequency synthesizer generates a write clock for writing digital data to the magnetic medium at a predetermined baud rate for a selected zone, and upon read back, a read frequency synthesizer generates a fixed sampling clock at a frequency slightly higher than the write frequency at the outer zone. A sampling device samples the analog read signal at this fixed sampling rate across the data zones and servo wedges to generate a sequence of discrete time channel samples that are not synchronized to the baud rate. Before sampling, an analog receive filter processes the read signal to attenuate aliasing noise without having to adjust its spectrum across data zones or servo wedges. A discrete time equalizing filter equalizes the channel samples according to a predetermined partial response (PR4, EPR4, EEPR4, etc.). An interpolating timing recovery circuit, responsive to the equalized channel samples, computes an interpolation interval tau and, in response thereto, generates interpolated sample values substantially synchronized to the baud rate. The timing recovery circuit also generates a synchronous data clock for clocking a discrete time sequence detector and pulse detector which detect the digital user and servo data from the interpolated sample values.
211	A method for recording and playing back information on magnetic strips and related reading/recording apparatus	AU7492296	1996-10-25	AU707328B2	1999-07-08	ZANETTI GIANCARLO
A method for recording and playing back an audio and/or video signal (and associated recording and playback apparatus, comprises: A) converting an audio and/or video signal into a first series of samples, achieved by sampling at a predetermined frequency and writing to a read/write memory (46), B) forming, by the later reading of the samples from memory at a frequency that is different from that of writing and is possibly variable, a recording on a magnetic strip (43) associated with a succession of timing marks (34) which identify recording blocks and a predetermined time T for playback of each block, C) obtaining, by reading the recording and the associated succession of timing marks, a second series of samples which are written to the memory in order, and a timing signal, D) applying the second series of samples read from the memory in an order correlated with that of writing, through a filter, to a transducer, the sampling frequency of the recording or reading of the samples from memory, which varies over time, being determined by the timing signal, in such a way that each recording block is played back in the time T.
212		DE69115972	1991-04-02	DE69115972D1	1996-02-15	TAKANASHI ITSUO; NAKAGAKI SHINTARO; ASAKURA TSUTOU; FURUYA MASATO; KOYAMA YOSHIHISA; UCHIYAMA YUJI
In an information recording apparatus, light containing information to be recorded is generated, and a photo-to-electric converting device serves to convert the light into a charge latent image. The photo-to-electric converting device includes a photoconductive member exposed to the light. Information corresponding to the charge latent image is recorded on a recording medium. A first recording device serves to record main information on a first region of the recording medium. A second recording device separate from the first recording device serves to record sub information on a second region of the recording medium. The second region is different from the first region.
213		DE3585661	1985-10-02	DE3585661D1	1992-04-23	OKAMOTO HIROO; KOBAYASHI MASAHARU
Method and apparatus for reproducing a PCM signal are disclosed. The PCM signal comprises a plurality of word- interleaved frames. Each frame comprises a plurality of data blocks and a parity block. Each data block comprises a plurality of words, each word (W_o) comprises an upper symbol (W_ou) and a lower symbol (W_o,) arranged symbol by symbol. A plurality of upper symbols (W_ou, W_ou' --) included in different blocks and a plurality of lower symbols (Wℓ, W_oe', -) included in the same word form a parity code (Q₀ - Q₅) generated from the symbols in the respective symbol sequences and a plurality of error detection/correction blocks. In the error flag processing of the PCM signal, the input PCM signal is reproduced, errors are detected and corrected based on the corresponding parity codes for a plurality of upper symbol error detection/correction sequences and a plurality of lower symbol error detection/ correction sequences, error flags indicating the number of errors detected and the number of errors corrected are generated for the error detection/correction sequences based on the result of the error detection/correction, a flag indicating a maximum significant value is detected from two flags generated for the upper and lower symbol error detection/correction sequence of the same word and selecting that flag as a common flag (F_c2`) to both sequences.
214		DE3667739	1986-07-17	DE3667739D1	1990-01-25	OKAMOTO HIROO; KIMURA HIROYUKI; YAMAZAKI SHIGERU; NOGUCHI TAKAHARU; KOBAYASHI MASAHARU
A PCM signal recording and reproducing apparatus comprises first and second memory circuits (10, 11), in which PCM signals are read and written using the first memory circuit (10), while PCM signals stored in the second memory circuit (11) are error-corrected. At the end of writing by the first memory circuit, the first and second memory circuits are interchanged to read the error-corrected PCM signals stored in the second memory circuit. The read-out error-corrected PCM signals are then recorded on another magnetic tape (2).
215	METHOD OF ENCODING A RECORDING SIGNAL, RECORD CARRIER PROVIDED WITH A RECORDING SIGNAL ENCODED IN ACCORDANCE WITH THE METHOD, APPARATUS FOR CARRYING OUT THE METHOD, AND APPARATUS FOR REPRODUCING A SIGNAL ENCODED IN ACCORDANCE WITH THE METHOD	CA447112	1984-02-09	CA1219068A	1987-03-10	SCHOUHAMER IMMINK KORNELIS A; AARTS RONALDUS M; KAHLMAN JOSEPHUS A H M; HOOGENDIJK ADRIANUS H
26 A method of encoding a recording signal, record carrier provided with a recording signal encoded in accordance with the method, apparatus for carrying out the method, and apparatus for reproducing a signal encoded in accordance with the method. A method is described on encoding a recording signal comprising a composite colour video signal and a further signal, in particular an audio signal for recording said signal on and reading it from an optical video disc. The colour video signal is frequency-modulated on a carrier in the customary manner, whilst the further signal is added to said frequency-modulated signal as a pulse-width-modulated digital signal.
216	P.C.M. AUDIO ON VIDEO TRACK	AU1089283	1983-02-01	AU558218B2	1987-01-22	MORIO MINORU; NAKANO KENJI; MORIWAKI HISAYOSHI
Apparatus for recording an information signal comprising at least an analog audio signal in a plurality of successive tracks (2A, 2B) on a magnetic tape (2) includes a PCM processing circuit (22) for converting an analog audio signal into a PCM audio signal, a video signal processing circuit (13, 14, 19) for processing a video signal to produce an output video signal, a rotary magnetic head assembly (1A, 1B) for recording the output video signal and the PCM audio signal in the plurality of successive tracks (2A, 2B) on the tape (2), a switch assembly (17A, 17B) for supplying the output video signal and the PCM audio signal to the rotary magnetic head assembly (1A, 1B), and a control circuit (34, etc) for controlling the switch assembly (17A, 17B) to supply the output video signal and the PCM audio signal to the rotary magnetic head assembly (1A, 1B) during a video use mode so that the rotary magnetic head assembly (1A, 1B) records the output video signal in a main section of each track (2A, 2B) and to supply only the PCM audio signal to the rotary magnetic head assembly (1A, 1B) during an audio use mode so that the rotary magnetic head assembly (1A, 1 B) records the PCM audio signal in different segments of the main section and overscan section of each track (2A, 2B).
217		AT484577	1977-07-06	AT381822B	1986-12-10

218	AMPLITUDE MODULATED HIGH FREQUENCY SIGNAL DETECTION DEVICE	GB8432243	1984-12-20	GB2152776A	1985-08-07	YOKOGAWA FUMIHIKO
A high frequency signal detection device to be used in an information playback system for playing back signals from a record medium having a plurality of record tracks, includes first and second positive peak hold circuits having different time constant and a negative peak hold circuit. A difference circuit is provided to generate a difference signal between output signals of the first positive peak hold circuit and the negative peak hold circuit and an output signal of the difference circuit is compared with an output signal of the second positive peak hold circuit, to produce a high frequency signal detection signal. Thus, a very accurate detection signal is produced irrespective of the polarity of the input signal and whether or not the envelope of the high frequency signal is symmetric.
219	SYSTEM FOR PROCESSING AND TRANSMITTING PCM SIGNALS	DE3166288	1981-06-05	DE3166288D1	1984-10-31	SCHOLZ WERNER DIPL ING
In a system for processing PCM signals and transmitting such signals over a channel, which system includes an input portion having a circuit for interleaving arriving data words and supplying the interleaved words to the input end of the channel, and an output portion having a circuit for de-interleaving the data words arriving at the output end of the channel so that the data words, after de-interleaving, are present in the sequence existing before interleaving, the interleaving circuit performs two successive interleaving operations on the arriving data words, and the de-interleaving circuit operates in a manner to complement the interleaving circuit.
220	MAGNETIC RECORDING SYSTEM	DE3067847	1980-08-22	DE3067847D1	1984-06-20	FUJIWARA TATSUO
A carrier wave at a frequency higher than the frequency of an input signal to be recorded is pulse width modulated with the input signal at the pulse width modulator, and the modulated signal thus obtained is supplied to a vertical magnetization recording head. The vertical magnetization recording head is held in contact with a magnetic tape having a rectangular hysteresis characteristic, and the modulated signal is recorded by vertical magnetization recording on the magnetic tape. The signal recorded by the vertical magnetization recording is reproduced with a reproducing head having a high sensitivity reproducing characteristic with respect to the input signal component of the pulse width modulation signal recorded on the recording medium and a low sensitivity characteristic with respect to the carrier wave component of the modulation signal.

6 7 8 9 10 11 12 13 14 15

IPRDB

热门服务

关于我们

友情链接

联系方式