Abstract

A modulation apparatus comprising a first modulating section that outputs a first modulated signal having a fixed amplitude and a set phase; a second modulating section that outputs a second modulated signal having the fixed amplitude and a set phase; an adding section that outputs the output signal as the sum of the first and second …

Legal parties

Party
Inventors (applicants): Norio Kobayashi
Assignees (initial): Advantest Corporation (Tokyo, JP)

The application was examined by Jeffrey Shin, Joseph Chang (USPTO dept. 2817)

Claims

  • 1. A modulation apparatus that outputs an output signal having a designated amplitude and a designated …
  • 2. The modulation apparatus according to claim 1 , wherein …
  • 3. The modulation apparatus according to claim 2 , wherein …

International priority data

JP: 2010-066858 / Mar. 23, 2010 (national)

Cited documents

Patents

  • JP H06-6394 A, Jan. 1, 1994
  • Demir et al. US 2009/0074108 A1 / 375/298, Mar. 1, 2009
  • Moriyama et al. US 6091941 A / 455/126, Jul. 1, 2000
  • Farag et al. US 7646801 B2 / 375/146, Jan. 1, 2010

Brief Description of the Drawings

FIG. 1 shows a configuration of a modulation apparatus 10 according to an embodiment of the present invention. FIG. 2 shows exemplary phases and amplitudes of the output signal (Sout) …

Description

Background

1. Technical Field The present invention relates to a modulation apparatus, a phase setting method, and a test apparatus. 2. Related Art A conventional LINC circuit is known that outputs …

Description of Exemplary Embodiments

Hereinafter, some embodiments of the present invention will be described. The embodiments do not limit the invention according to the claims, and all the combinations of the features described in the embodiments …

More details about Modulation Apparatus, Phase Setting Method and Test Apparatus

Miscellaneous patent data

The application number is 13/016,864 (U.S.), located in Tokyo (JP), the assignee company is Advantest Corporation, illustrated by 12 drawings, the protection scope is defined by 19 claims, the assignee classification - a foreign company or corporation, the exemplary claims include number 1, the invention is titled Modulation Apparatus, Phase Setting Method and Test Apparatus, 12 figures are supplied with the description, the known inventor's name is Kobayashi Norio, the patent was granted on Dec. 3, 2013, the applicant's last name is Kobayashi, and his first name is Norio, the patent extension term is 109 days, similar patents are classified under Shortcut routing, e.g. next hop resolution protocol [NHRP], Multiprotocol routing, e.g. for protocol adaptation between IPv4 and IPv6 or dual stack, Miscellaneous, Percent modulation control or automatic amplitude control of carrier or modulating signal, in which the return channel carries supervisory signals, e.g. repetition request signals, using relay distributors, electron discharge device, Between diverse pulse modulation types, Selecting a path with suitable quality of service [QoS], Push-pull circuit, the application publication date is Jan. 28, 2011, developed by Norio Kobayashi, the exemplary patent drawings are configuration of a modulation apparatus, Modulation Apparatus, Phase Setting Method, exemplary method for calculating the two phases, exemplary phases and amplitudes of the output, the grant number is 08598959, was examined by Joseph Chang, the main examiner, Jeffrey Shin, the assistant (2817 USPTO department), categorized under Phase Shift Keying Modulator or Quadrature Amplitude Modulator as a primary classification, the patent particularly claims a modulation apparatus that outputs an output signal having a designated…

Invention classification information

The invention is classified under Reduction of carrier phase or frequency variations or modulation, Phase Modulator, Phase Shift Keying Modulator or Quadrature Amplitude Modulator, Modulator circuits, Transmitter circuits. The designated search classifications include Quadrature amplitude modulation, Quaternary, Quadrature amplitude modulation, Phase Modulator, With phase or frequency shift keying, Reduction of carrier phase or frequency variations or modulation, Phase Shift Keying Modulator or Quadrature Amplitude Modulator.

Patent details
Publication number 08598959
Publication date Dec. 3, 2013
Kind code B2
Application number 13/016,864
Application date Jan. 28, 2011
Application type U
Application series code 13
Extension term 109
National classification 332/103
Total number of claims 19
Exemplary claims 1
Number of drawings 12
Number of figures 12
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