Abstract

A full spectrum modulator processes a plurality of CATV channels from separate paths. Each path has (i) a first filter for pulse shaping an input channel signal and upsampling a channel frequency thereof, (ii) an interpolator for interpolating the output of the first filter to a common sample rate, and (iii) a decimator for centering …

Legal parties

Party
Inventors (applicants): Kennan Laudel
Assignees (initial): RGB Networks, Inc. (Sunnyvale, US)
Agents: Lipsitz & McAllister, LLC (attorney)

The application was examined by Arnold Kinkead (USPTO dept. 2817), Richard Tan

Claims

  • 1. A full spectrum modulator comprising: …
  • 2. A modulator in accordance with claim 1 , wherein said modulator is for use …
  • 3. A modulator in accordance with claim 1 , wherein said IDFT processor is a 360 point …

Cited documents

Patents

  • Suzuki et al. US 5907585 A / 375/324, May. 1, 1999
  • Lurey et al. US 6009130 A / 375/347, Dec. 1, 1999
  • Adachi US 6590871 B1 / 370/307, Jul. 1, 2003
  • Monta US 7068730 B2, Jun. 1, 2006
  • Torosyan US 7532989 B1 / 702/66, May. 1, 2009
  • McCoy US 6996188 B2 / 375/260, Feb. 1, 2006
  • Harrison US 5323391 A / 370/210, Jun. 1, 1994

Drawings

Brief Description of the Drawings

FIG. 1 is a block diagram illustrating signal processing apparatus for a single channel modulator in accordance with the prior art. FIG. 2 is a block diagram illustrating how the single …

Description

Background of the Invention

In recent years, the number of quadrature amplitude modulation (QAM) channels used for narrowcast digital television services has increased substantially. Most multiple system operators (MSOs) are providing more and more …

Detailed Description of the Invention

A first implementation of the present invention is illustrated in FIG. 4 , which is a block diagram of a full spectrum downstream television modulator that can fit within a single …

More details about Full Spectrum Modulator for Digital Television Signals

Miscellaneous patent data

The application publication date is Jun. 20, 2011, the invention details are shown in 7 figures, the grant publication date is Dec. 17, 2013, the assignee is a United States company, the known agent's company is Lipsitz & McAllister, LLC, the application was examined by Richard Tan, Arnold Kinkead (2817 USPTO department), the grant number is 08610514, the claim number 1 is selected as exemplary, similar classification categories are Topology update or discovery, electron discharge device, Plate circuit modulation, Hierarchical routing, e.g. clustered networks or inter-domain routing, keyboard co-operating with code-bars, particular housing, physical features or manual controls, Push-pull circuit, Plural modulator tubes, Message switching systems, Phase or frequency locked loop, the invention is titled Full Spectrum Modulator for Digital Television Signals, numbered 13/164,029 (application), developed by Kennan Laudel, originally classified under Phase Shift Keying Modulator or Quadrature Amplitude Modulator, 23 claims comprise the protection scope, the applicant's city - San Jose, state - CA, the applicant's name is Laudel Kennan, the invention description is illustrated by 7 drawings, the inventor's location - San Jose, CA, the inventor's first name is Kennan, and his last name is Laudel, the drawings include the following: Full Spectrum Modulator for Digital, Block diagram illustrating how the single, Block diagram of a polyphase, Block diagram illustrating signal processing, the patent particularly claims a full spectrum modulator comprising…, located in Sunnyvale (US), the assignee company is RGB Networks, Inc., the patent grant was extended by 154 days.

Invention classification information

The invention is classified under Plural channels for transmission of a single pulse train, Phase Shift Keying Modulator or Quadrature Amplitude Modulator, Modulator circuits, Transmitter circuits, Diversity, Quadrature amplitude modulation, Modulator. The designated search classifications include Diversity, Plural channels for transmission of a single pulse train, Quadrature amplitude modulation, Phase Shift Keying Modulator or Quadrature Amplitude Modulator, Modulator.

Patent details
Publication number 08610514
Publication date Dec. 17, 2013
Kind code B2
Application number 13/164,029
Application date Jun. 20, 2011
Application type U
Application series code 13
Extension term 154
National classification 332/103
Total number of claims 23
Exemplary claims 1
Number of drawings 7
Number of figures 7
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