Title:
MODULATING CIRCUIT, TRANSMITTING APPARATUS USING THE SAME, RECEIVING APPARATUS AND COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2006/051735
Kind Code:
A1
Abstract:
A modulating circuit that is configured by use of a simple structure so as to increase the amount of information to be transmitted. A transmitting apparatus capable of easily generating a desired waveform even for any very short wavelets. A receiving apparatus capable of easily separating wavelets even if the intervals of the wavelets are narrow. A communication system. The modulating circuit comprises a clock generating part, a transport signal generating part, a control signal generating part, a delaying part and a wavelet generating part. The clock generating part generates a clock signal at predetermined time intervals (Tp). The transport signal generating part generates a transport signal at the predetermined time intervals (Tp). The control signal generating part outputs a control signal of a predetermined duration based on the clock signal. The delaying part generates the control signal as a delay signal that has been delayed by a delay amount based on the transport signal. The wavelet generating part generates a wavelet at the generation timing of the delay signal.
Inventors:
MIMURA MASAHIRO
TAKAHASHI KAZUAKI
FUJITA SUGURU
KUNIEDA YOSHINORI
UEKI NORIYUKI
TAKAHASHI KAZUAKI
FUJITA SUGURU
KUNIEDA YOSHINORI
UEKI NORIYUKI
Application Number:
PCT/JP2005/020273
Publication Date:
May 18, 2006
Filing Date:
November 04, 2005
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
MIMURA MASAHIRO
TAKAHASHI KAZUAKI
FUJITA SUGURU
KUNIEDA YOSHINORI
UEKI NORIYUKI
MIMURA MASAHIRO
TAKAHASHI KAZUAKI
FUJITA SUGURU
KUNIEDA YOSHINORI
UEKI NORIYUKI
International Classes:
H04B1/69; H03K7/04; H04B1/7163; H04B1/717; H04L25/49
Foreign References:
| JP2003101509A | 2003-04-04 |
Other References:
SIWIAK K.: "Ultra-Wide Band Radio: Introducing a New Technology.", VEHICULAR TECHNOLOGY CONFERENCE., vol. 53, 9 May 2001 (2001-05-09), pages 1088 - 1093, XP001067128
BUCHEGGER T ET AL: "PULSE DELAY TECHNIQUES FOR PPM IMPULSE RADIO TRANSMITTERS.", ULTRA WIDEBAND SYSTEMS AND TECHNOLOGIES., 16 November 2003 (2003-11-16), pages 37 - 41, XP010683724
BAGGA S, WOUTER A, SERDIJN AND JOHN R LONG.: "A PPM Gaussian Monocycle Transmitter for Ultra-Wideband Communications.", ULTRA WIDEBAND SYSTEMS., 18 May 2004 (2004-05-18), pages 130 - 134, XP010716234
See also references of EP 1796268A4
BUCHEGGER T ET AL: "PULSE DELAY TECHNIQUES FOR PPM IMPULSE RADIO TRANSMITTERS.", ULTRA WIDEBAND SYSTEMS AND TECHNOLOGIES., 16 November 2003 (2003-11-16), pages 37 - 41, XP010683724
BAGGA S, WOUTER A, SERDIJN AND JOHN R LONG.: "A PPM Gaussian Monocycle Transmitter for Ultra-Wideband Communications.", ULTRA WIDEBAND SYSTEMS., 18 May 2004 (2004-05-18), pages 130 - 134, XP010716234
See also references of EP 1796268A4
Attorney, Agent or Firm:
Iwahashi, Fumio c/o Matsushita Electric Industrial Co. Ltd. (1006, Oaza Kadom, Kadoma-shi Osaka, JP)
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