Patents by Inventor Satomi Shigaki
Satomi Shigaki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 7408851Abstract: Compressed audio data for 5.1 channels stored in the DVD-ROM 11A is read by the AC-3 decoder 12 of a pseudo multi-channel stereo play-back apparatus and, after expansion, stored temporarily in a buffer 13, channel by channel. Among stored audio data stored in the buffer 13, audio data for left and right channels and for a front center channel are then subjected to the phase transformation. Audio data for left and right front channels are mixed with the phase transformed audio data by first and second mixing circuits 21 and 22 and mixed audio data are converted into analog audio signals by first and second D/A converters. The apparatus is capable of pseudo reproduction of the multi-channel audio signals stored in a recording medium such as a DVD-ROM by two channel play-back with an excellent sound effect which is not obtainable by usual two-channel play-back systems.Type: GrantFiled: December 12, 2005Date of Patent: August 5, 2008Assignee: NEC CorporationInventor: Satomi Shigaki
-
Publication number: 20080159095Abstract: Compressed audio data for 5.1 channels stored in the DVD-ROM 11A is read by the AC-3 decoder 12 of a pseudo multi-channel stereo play-back apparatus and, after expansion, stored temporarily in a buffer 13, channel by channel. Among stored audio data stored in the buffer 13, audio data for left and right channels and for a front center channel are then subjected to the phase transformation. Audio data for left and right front channels are mixed with the phase transformed audio data by first and second mixing circuits 21 and 22 and mixed audio data are converted into analog audio signals by first and second D/A converters. The apparatus is capable of pseudo reproduction of the multi-channel audio signals stored in a recording medium such as a DVD-ROM by two channel play-back with an excellent sound effect which is not obtainable by usual two-channel play-back systems.Type: ApplicationFiled: February 28, 2008Publication date: July 3, 2008Inventor: Satomi Shigaki
-
Patent number: 7245822Abstract: A recording/reproducing manage unit 25, in response to an instruction, records the images of program into the recording files in order by changing the target recording file in a predetermined interval. Then the unit 25, in response to another instruction, reproduces the recording files in its recorded order. Thereby a recording/reproducing device of broadcasting signals of the invention can complete reproduction of a program at almost the same timing as an end time of real broadcasting of the program, even if the reproduction is started a long time behind the starting of the real broadcasting of the program.Type: GrantFiled: May 8, 2001Date of Patent: July 17, 2007Assignee: NEC CorporationInventor: Satomi Shigaki
-
Publication number: 20060114783Abstract: Compressed audio data for 5.1 channels stored in the DVD-ROM 11A is read by the AC-3 decoder 12 of a pseudo multi-channel stereo play-back apparatus and, after expansion, stored temporarily in a buffer 13, channel by channel. Among stored audio data stored in the buffer 13, audio data for left and right channels and for a front center channel are then subjected to the phase transformation. Audio data for left and right front channels are mixed with the phase transformed audio data by first and second mixing circuits 21 and 22 and mixed audio data are converted into analog audio signals by first and second D/A converters. The apparatus is capable of pseudo reproduction of the multi-channel audio signals stored in a recording medium such as a DVD-ROM by two channel play-back with an excellent sound effect which is not obtainable by usual two-channel play-back systems.Type: ApplicationFiled: December 12, 2005Publication date: June 1, 2006Inventor: Satomi Shigaki
-
Patent number: 6996040Abstract: Compressed audio data for 5.1 channels stored in the DVD-ROM 11A is read by the AC-3 decoder 12 of a pseudo multi-channel stereo play-back apparatus and, after expansion, stored temporarily in a buffer 13, channel by channel. Among stored audio data stored in the buffer 13, audio data for left and right channels and for a front center channel are then subjected to the phase transformation. Audio data for left and right front channels are mixed with the phase transformed audio data by first and second mixing circuits 21 and 22 and mixed audio data are converted into analog audio signals by first and second D/A converters. The apparatus is capable of pseudo reproduction of the multi-channel audio signals stored in a recording medium such as a DVD-ROM by two channel play-back with an excellent sound effect which is not obtainable by usual two-channel play-back systems.Type: GrantFiled: July 21, 2004Date of Patent: February 7, 2006Assignee: NEC CorporationInventor: Satomi Shigaki
-
Patent number: 6952520Abstract: According to the invention, as received stream data is analyzed a sequence header is retrieved and stream data after the detected sequence header is written to storage unit when a recording initiation command is received, a recorded file is generated with a sequence header having image format information required to reproduce stream data immediately after the recording initiation command at the head. As when a reproducing command is received, stream data after the sequence header is read from the storage unit and an image and voice are reproduced, the recorded stream data can immediately normally reproduced without delay and therefore, data acquired by recording stream data used for digital broadcasting and others can be smoothly reproduced.Type: GrantFiled: September 5, 2000Date of Patent: October 4, 2005Assignee: NEC CorporationInventor: Satomi Shigaki
-
Publication number: 20040258247Abstract: Compressed audio data for 5.1 channels stored in the DVD-ROM 11A is read by the AC-3 decoder 12 of a pseudo multi-channel stereo play-back apparatus and, after expansion, stored temporarily in a buffer 13, channel by channel. Among stored audio data stored in the buffer 13, audio data for left and right channels and for a front center channel are then subjected to the phase transformation. Audio data for left and right front channels are mixed with the phase transformed audio data by first and second mixing circuits 21 and 22 and mixed audio data are converted into analog audio signals by first and second D/A converters. The apparatus is capable of pseudo reproduction of the multi-channel audio signals stored in a recording medium such as a DVD-ROM by two channel play-back with an excellent sound effect which is not obtainable by usual two-channel play-back systems.Type: ApplicationFiled: July 21, 2004Publication date: December 23, 2004Applicant: NEC CORPORATIONInventor: Satomi Shigaki
-
Patent number: 6781933Abstract: Compressed audio data for 5.1 channels stored in a DVD-ROM is read by an AC-3 decoder of a pseudo multi-channel stereo play-back apparatus and, after expansion, stored temporarily in a buffer, channel by channel. Among stored audio data stored in the buffer, audio data for left and right channels and for a front center channel are then subjected to the phase transformation. Audio data for left and right front channels are mixed with the phase transformed audio data by first and second mixing circuits and mixed audio data are converted into analog audio signals by first and second D/A converters. The apparatus is capable of pseudo reproduction of the multi-channel audio signals stored in a recording medium such as a DVD-ROM by two channel play-back.Type: GrantFiled: December 15, 1998Date of Patent: August 24, 2004Assignee: NEC CorporationInventor: Satomi Shigaki
-
Publication number: 20020057891Abstract: A recording/reproducing manage unit 25, in response to an instruction, records the images of program into the recording files in order by changing the target recording file in a predetermined interval. Then the unit 25, in response to another instruction, reproduces the recording files in its recorded order. Thereby a recording/reproducing device of broadcasting signals of the invention can complete reproduction of a program at almost the same timing as an end time of real broadcasting of the program, even if the reproduction is started a long time behind the starting of the real broadcasting of the program.Type: ApplicationFiled: May 8, 2001Publication date: May 16, 2002Inventor: Satomi Shigaki