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31. 发明专利

JPH0591497A VIDEO-TELEPHONE SIGNAL TRANSFER METHOD FOR MOVING PICTURE 失效
公开(公告)号：JPH0591497A
公开(公告)日：1993-04-09
申请号：JP25158591
申请日：1991-09-30
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NAKAMURA OSAMU , MATSUDA TOMOSHI
IPC分类号： G10L15/20 , G10L21/02 , H04L12/54 , H04L12/58 , H04M11/06 , H04N7/14 , H04N19/423 , H04N19/50 , H04N19/65 , H04N19/70 , H04N19/85 , H04N21/44 , H04Q11/04
摘要： PURPOSE:To simplify the handling of the synchronized reproducing of sound and images at a host equipment by transferring autio and video signal transmitted by means of two communication pathes to an pre-fabricated host equipment in one packet so as to ensure synchronization relationship and storing these signals as they are in the host equipment. CONSTITUTION:Encoded audio data are divided into blocks V1, V2,... for each certain interval. Encoded video data are divided into blocks P1, P2,... with Pi headed for each intra-frame encoded data Pi which were periodically inserted by means of intra-frame encoding. Both the divided encoded audio data and the divided encoded video data are arranged in time series and formed into packets by combining one block of the encoded video data with the corresponding encoded audio data. These packet data are stored in the host equipment, and the host equipment transfers these data in the unit of packet in answer to the read-out by a terminal and skips a certain number of transfer packets in answer to rapid feeding and rewinding commands. Thus, the synchronized processing of the video and audio data can be ensured and the image can be prevented from getting turbulent.

32. 发明专利

JPH04361393A VAGUE CHARACTER STRING COLLATION METHOD 失效
公开(公告)号：JPH04361393A
公开(公告)日：1992-12-14
申请号：JP13681191
申请日：1991-06-07
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NAKAMURA OSAMU , TANAKA AKIMICHI , HOSOKAWA MASAYOSHI , KITAMURA TADASHI
IPC分类号： G06K9/72
摘要： PURPOSE:To accurately identify a character string consisting of similar characters which has high possibility of erroneous recognition so as to improve the rate of the right answers of a term candidate. CONSTITUTION:A contraction term dictionary reconstituting all the terms being collelation objects by using a character dictionary and a contraction character code system corresponding to a character code system manufactured by contraction which represents the subset of the similar characters which has high possibility of erroneous recognition with fewer characters. A contraction character candidate based on the contraction character code system from the character string by character recognition using the contraction character dictionary, and a contraction term candidate which is the most suitable for the contraction character candidate is selected by the collation of the contraction character candidate and the contraction term dictionary.

33. 发明专利

JPH04171591A HIERARCHIZATION TERM COLLATING SYSTEM 失效
公开(公告)号：JPH04171591A
公开(公告)日：1992-06-18
申请号：JP29888890
申请日：1990-11-06
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： SAKAMOTO TOMIYOSHI , OGURO MASAMI , NAKAMURA OSAMU
IPC分类号： G06K9/72 , G06F17/22 , G06F17/28
摘要： PURPOSE:To output a term candidate with high reliability by outputting the whole character string term candidate when the whole character string term candidate includes a partial character string term candidate and connecting and outputting a residual character candidates except the partial character string term candidate among the character candidates and the partial character string term candidate when it does not include. CONSTITUTION:A recognized character candidate is collated with a whole character string candidate dictionary 105 and a partial character string candidate dictionary 104, the whole character string term candidate and a partial character string term candidate are outputted respectively and the outputted whole character string term candidate and partial character string candidates are compared. As the result of the comparison, when the whole character string term candidate includes the partial character string term candidate, the whole character string term candidate is outputted and when it does not include, the residual character candidates except the partial character string term candidate among the character candidates and the partial character string term candidate are connected and are outputted. Thus, a character recognizing result is collated with a term dictionary and the precise term candidate can be obtained with high reliability.

34. 发明专利

JPH0496885A ANALOGOUS CHARACTER DISCRIMINATING SYSTEM 失效
公开(公告)号：JPH0496885A
公开(公告)日：1992-03-30
申请号：JP21418690
申请日：1990-08-13
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： TANAKA AKIMICHI , NAKAMURA OSAMU , HOSOKAWA MASAYOSHI
IPC分类号： G06K9/68 , G06K9/62
摘要： PURPOSE:To enable an stable application to characteristic vectors whose variance is almost 0 dimension or more than 1,000 dimensions by obtaining a differential vector set after extracting the characteristic vectors from character images, and moreover obtaining a transformation matrix for analogous characters. CONSTITUTION:When an inputted character image is applied, the characteristic vector is extracted by a characteristic vector extracting means 101, and converted by a converting means 102 for the analogous characters. An average in a character dictionary 108 in a category included in an analogous character table is converted by the converting means 102 for the analogous characters, and a distance calculation is operated between it and the character vector obtained from the inputted character image, by a distance calculating means 105. Then, a character code 106 in the category whose distance is minimum is outputted. Thus, the analogous character discrimination transformation matrix can be stably obtained towards the character vectors whose distributions are almost 0 dimension or more than 1,000 dimensions, such as a PDC characteristic.

35. 发明专利

JPH03240183A AUTOMATIC CORRECTION SYSTEM FOR RECOGNIZED CHARACTER 失效
公开(公告)号：JPH03240183A
公开(公告)日：1991-10-25
申请号：JP3585590
申请日：1990-02-16
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NAKAMURA OSAMU , KITAMURA TADASHI , ISHIKAWA TSUTOMU
IPC分类号： G06K9/03
摘要： PURPOSE:To save the labor for confirming and correcting operation by correcting the recognized character automatically for plural character positions where similar misrecognition is caused by correcting the character only once. CONSTITUTION:This system is equipped with a table 4 which holds all character recognition results and a rearrangement decision means 5 which decides whether or not similar misrecognition is caused as to other character positions when misrecognition wherein a correct character candidate is obtained as a 2nd or succeeding candidate is corrected to obtain the candidate as a 1st character candidate. Namely, the rearrangement decision means 5 rearranges character positions where it is judged that similar misrecognition is caused so as to set the character candidate which is estimated as the correct character candidate as the 1st candidate. Consequently, the similar recognition results are corrected only once to correct recognized characters at plural character positions where the similar misrecognition is caused automatically, thereby saving the labor for the confirming and correcting operation.

36. 发明专利

JPH0365843A IMAGE STORE-AND-FORWARD SWITCHING DEVICE 失效
公开(公告)号：JPH0365843A
公开(公告)日：1991-03-20
申请号：JP20241789
申请日：1989-08-04
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NAKANO HIROTAKA , OYAMA MINORU , NAKAMURA OSAMU , MUROTANI SHINICHI
IPC分类号： H04N7/14 , G06F13/00 , H04L12/54 , H04L12/58
摘要： PURPOSE:To read the contents of plural mails at high speed by extracting and holding a significant period from moving image information and a voice and displaying the held content. CONSTITUTION:The subject device is provided with a center (image store and forward switching device) 3, a communication control section 31, a significant period extraction section 32, an inter-frame difference extraction device 32-1, a significant period deciding device 32-2, and a central control section 33. Then the significant period extraction section 32 extracts a period with a large inter- frame difference in the information sent from a terminal equipment 1 to decide a significant period and stores it in a file memory 34. Thus, a significant part is extracted automatically from the mail inputted individually in the center and edited automatically as a mail of same destination. Thus, the mail readout by the user is implemented at the high speed.

37. 发明专利

JPH02121078A VOCABULARY DICTIONARY RETRIEVING DEVICE 失效
公开(公告)号：JPH02121078A
公开(公告)日：1990-05-08
申请号：JP27522488
申请日：1988-10-31
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NAKAMURA OSAMU , KITAMURA TADASHI , OGURO MASAMI
IPC分类号： G06K9/72 , G06F17/30
摘要： PURPOSE:To highly speedily retrieve a vocabulary dictionary and to improve efficiency for identifying an accurate vocabulary by removing a high-frequency character to be used, which has high frequency and is used in many vocabularies, from the selection of the vocabularies. CONSTITUTION:The title device is composed of a processor 9, a program memory 11, a working memory 13, and a table memory 15. Further, for respective candidate characters obtained by removing the prescribed high-frequency character to be used from input character candidates, vocabularies having the same character positions and the same number of the characters of a character string are selected, scores included in these respective vocabularies are added, the total scores of the respective vocabularies are calculated, and when the respective vocabularies include the high-frequency character to be used, prescribed scores corresponding to the high-frequency character to be used are added to the total scores, and the scores are corrected. Thus, the vocabulary dictionary can be retrieved at a high speed, and the vocabulary dictionary can be highly identified.

38. 发明专利

JPS62284425A INFORMATION RETRIEVING SYSTEM 失效
公开(公告)号：JPS62284425A
公开(公告)日：1987-12-10
申请号：JP12763486
申请日：1986-06-02
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： OGURO MASAMI , NAKAMURA OSAMU
IPC分类号： G06F17/30
摘要： PURPOSE:To speed up data retrieval from a data base by constituting the data base so that the detailedness of only a table required at its detailedness is increased in the descending order from the upper hierarchy to the lower hierarchy. CONSTITUTION:Records in the data base are sorted on the basis of the detailedness of description of the contents of a retrieval key and the records having the same detailedness are constituted as a table in the same hierarchy. The detailedness of only the table required at its detailed description is constituted so as to be increased in the ascending order from the upper hierarchy to the lower hierarchy. Since the retrieving operation of retrieving circuits 3, 5 is executed on the basis of the decision of a decision circuit 7 and a selector 8 in the descending order from an upper hierarchy table 4 to a lower hierarchy table 6, the useless operation of data description and data retrieval can be omitted.

39. 发明专利

JPS567567A TRANSMISSION SYSTEM OF COLOR FACSIMILE SIGNAL 失效
公开(公告)号：JPS567567A
公开(公告)日：1981-01-26
申请号：JP8357779
申请日：1979-06-29
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NAKAMURA OSAMU , YAMAMOTO TETSUJI , JINBOU YOSHIHIRO
IPC分类号： H04N1/48 , H04N1/46 , H04N1/64
摘要： PURPOSE:To enable to transmit the color signal by adding the additional circuit which makes the signals of black, white and red as ternary to conventtional AM modulation circuits, by the transmission of black and red two color signal as the binary amplitude modulation output different from the amplitude. CONSTITUTION:The video signal in black and red from the terminals 11 and 12 is synthesized at the video signal circuit 13 and given to the amplitude modulation circuit 14 as level 1 with the black signal and as 0.5 level with the red signal. At the amplitude modulation circuit 14, the output from the carrier generator 19 is transmitted to the transmission line 21 as the binary amplitude modulation output. At the reception side, the output is detected at the envelope detection circuit 23 after rejection of noise, and black signal is picked up from the comparator 24. Red signal only is picked up at the comparator 25 with the black signal blocked at the gate 27.

40. 发明专利

JPS567565A TRANSMISSION SYSTEM OF COLOR FACSIMILE SIGNAL 失效
公开(公告)号：JPS567565A
公开(公告)日：1981-01-26
申请号：JP8357579
申请日：1979-06-29
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NAKAMURA OSAMU , YAMAMOTO TETSUJI , JINBOU YOSHIHIRO , KOBAYASHI KAZUO
IPC分类号： H04N1/48 , H04N1/46 , H04N1/64
摘要： PURPOSE:To enable the color transmission which can also commonly use the modulation and demodulation unit for binary value of white and black without using special modulation and demodulation units, by the transmission of positive phase carrier with the black signal in the fascimile signal and the opposite phase carrier with the red signal. CONSTITUTION:The input video signal B and R of black and red are synthesized at the video signal circuit 13 and fed to the amplitude modulation circuit 14. Further, the status identification information 15 for chrominance signal is picked up from the video signal circuit 13 and fed to the phase selection circuit 16. Further, if the chrominance signal is black, the carrier in phase 0 is fed to the amplitude modulation circuit 14 via the phase selection circuit 16 from the carrier circuit 17 and if red, the carrier of phase pi. The modulated video signal is given to the synchronizing detection circut 27 and the carrier reproduction circuit 28. The signal in synchronizing detection is fed to the rectifier circuit 29, the positive side is picked up as the black signal and the negative side is picked up as the red signal through the polarity inversion unit 33.

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