System and method for multi-band ultra-wide band signal generators

• US 7,539,271 B2
• Filed: 08/18/2003
• Issued: 05/26/2009
• Est. Priority Date: 08/16/2002
• Status: Expired due to Fees

• Current Assignee: Wisair Limited (Wisair Incorporated)
• Original Assignee: Wisair Limited (Wisair Incorporated)
• Inventors: Shor, Gadi, Knobel, Yaron, Blumer, Benny, Yaish, David, Rubin, Zeev, Meshulam, David
• Primary Examiner(s): Tran, Khai
• Application Number:
  US10/643,108
• Publication Number:
  US 20040131130A1
• Time in Patent Office: 2,108 Days
• Field of Search: 375/130, 375/132, 375/138, 375/239, 375/308, 375/329, 341/177, 341/178, 341180-182
• US Class Current: 375/308
• CPC Class Codes: H04B 1/7163 using impulse radio
• CPC Class Codes: H04B 1/71632 Signal aspects H04B1/7172 and H04B1/7176 take precedence
• CPC Class Codes: H04B 1/7174 Pulse generation in general H04L25/03834
• CPC Class Codes: H04B 1/719 Interference-related aspects
• CPC Class Codes: H04L 1/004 by using forward error control H04L1/0618 takes precedence; coding, decoding or code conversion, for error detection or correction H03M13/00
• CPC Class Codes: H04L 2027/0051 Harmonic tracking
• CPC Class Codes: H04L 27/206 using a pair of orthogonal carriers, e.g. quadrature carriers
• CPC Class Codes: H04L 5/06 the signals being represented by different frequencies combined with time-division multiplexing H04L5/26

Abstract

The present invention provides systems and methods relating to ultra-wide band communications. A method is provided for transmitting information using ultra-wide band transmission. The method includes allocating, for signal transmission, each of a plurality of frequency sub-bands. The method further includes sending an ultra-wide band transmission comprising the information by transmitting a burst symbol cycle signal over each of the plurality of frequency sub-bands.

Claims

1. A method for transmitting information using ultra-wide band transmission, the method comprising:

allocating, for signal transmission, each of a plurality of frequency sub-bands;

sending an ultra-wide band transmission comprising the information by transmitting a burst symbol cycle signal over each of the plurality of frequency sub-bands;

switching off power to at least one circuit during OFF periods of a transmission to decrease power consumption; and

maintaining signal frequency and phase from an end of an ON period to a beginning of the following ON period.

2. The method of claim 1, comprising sending at least two of the burst symbol cycle signals serially.

3. The method of claim 1, comprising utilizing at least one of an analog wave generator, digital wave generator, and a combination analog and digital wave generator.

4. A method for transmitting information using ultra-wide band transmission, the method comprising:

allocating, for signal transmission, each of a plurality of frequency sub-bands; and

sending an ultra-wide band transmission comprising the information by transmitting a signal over each of the plurality of frequency sub-bands;

wherein phase continuity is maintained by;

dividing each of the frequency sub-bands into a plurality of segments; and

cycling transmission between segments of each of the sub-bands;

wherein the method comprises;

switching off power to at least one circuit during OFF periods of a transmission to decrease power consumption; and

maintaining signal frequency and phase from an end of an ON period to a beginning of the following ON period.

5. A method for transmitting information using ultra-wide band transmission, the method comprising:

allocating, for signal transmission, each of a plurality of frequency sub-bands; and

sending an ultra-wide band transmission comprising the information by transmitting a signal over each of the plurality of frequency sub-bands, comprising producing at least one analog carrier wave of a frequency sub-band using outputs from a plurality of digital to analog converters;

wherein the method comprises;

switching off power to at least one circuit during OFF periods of a transmission to decrease power consumption; and

maintaining signal frequency and phase from an end of an ON period to a beginning of the following ON period.

6. The method of claim 5, wherein producing the at least one analog carrier wave comprises each of the digital to analog converters outputting a portion of the analog carrier wave based on an input bit, and comprises cycling through input values to produce consecutive segments of the analog carrier wave.

7. A method for transmitting information using ultra-wide band transmission, the method comprising:

allocating, for signal transmission, each of a plurality of frequency sub-bands; and

sending an ultra-wide band transmission comprising the information by transmitting a signal over each of the plurality of frequency sub-bands, comprising using a sine wave envelope to reduce side lobes in at least one carrier frequency, comprising multiplying a carrier signal by a sine wave of a lower frequency than the carrier frequency.

8. The method of claim 7, comprising varying pulse bandwidth while pulse repetition frequency remains constant, to facilitate control of signal spectrum characteristics and receiver selectivity.

9. The method according to claim 7, wherein the method comprises switching off power to at least one circuit during OFF periods of a transmission to decrease power consumption;

and maintaining signal frequency and phase from an end of an ON period to a beginning of the following ON period.

10. The method according to claim 7, wherein the method comprises utilizing a sine wave rectifier having an adjustable threshold.