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Class Information
Number: 455/116
Name: Telecommunications > Transmitter > Carrier amplitude control (e.g., voice operated on/off)
Description: Subject matter where the amplitude of the carrier signal is controlled responsive to the modulation signal.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7469130 |
Polar modulator and method for determining an amplitude offset in a polar modulator |
Dec. 23, 2008 |
| 7460500 |
Multicarrier transmission method and apparatus |
Dec. 2, 2008 |
| 7450917 |
Power saving transmitter of mobile communication terminal |
Nov. 11, 2008 |
| 7395034 |
Clipping circuit and radio transmitter using the same |
Jul. 1, 2008 |
| 7369819 |
Digital amplitude modulation transmitter with pulse width modulating RF drive |
May. 6, 2008 |
| 7353006 |
Closed loop power control of non-constant envelope waveforms using sample/hold |
Apr. 1, 2008 |
| 7340224 |
Devices for reducing the dynamic range of signals in transmitters of communication systems |
Mar. 4, 2008 |
| 7277720 |
Apparatus, and associated method, for facilitating formation of an apparent push-to-talk communication connection |
Oct. 2, 2007 |
| 7239632 |
Method and apparatus for converging local area and wide area wireless data networks |
Jul. 3, 2007 |
| 7212790 |
Communication apparatus in radio network, transmission control method, threshold value control method, and radio network system |
May. 1, 2007 |
| 7190965 |
Apparatus and method for stabilization of the transmission power of radios |
Mar. 13, 2007 |
| 7110739 |
Multi-transmitter communication system employing anti-phase pilot signals |
Sep. 19, 2006 |
| 7088967 |
Data-compensating power measurement |
Aug. 8, 2006 |
| 7072626 |
Polar modulation transmitter |
Jul. 4, 2006 |
| 7058371 |
Mechanism for modulating wireless communication signals |
Jun. 6, 2006 |
| 7013115 |
Method for the generation of modulation by frequency division followed by frequency multiplication, and radiofrequency apparatus |
Mar. 14, 2006 |
| 7010276 |
Communications signal amplifiers having independent power control and amplitude modulation |
Mar. 7, 2006 |
| 6982965 |
Multicarrier transmission method and apparatus |
Jan. 3, 2006 |
| 6980822 |
Method and device for control of the transmission power of a cellular mobile telephone |
Dec. 27, 2005 |
| 6954620 |
RF power control system including watchdog circuit |
Oct. 11, 2005 |
| 6917823 |
Cellular telephone |
Jul. 12, 2005 |
| 6882831 |
Translational loop transmitter architecture employing channel power ratio measurements for modulation accuracy calibration |
Apr. 19, 2005 |
| 6882832 |
Frequency verification of an amplitude modulated signal |
Apr. 19, 2005 |
| 6853838 |
Biasing circuit for degenerated differential pair |
Feb. 8, 2005 |
| 6839549 |
System and method of RF power amplification |
Jan. 4, 2005 |
| 6834182 |
Method and apparatus providing real-time adjacent channel power ratio (ACPR) in a mobile station |
Dec. 21, 2004 |
| 6816832 |
Transmission of comfort noise parameters during discontinuous transmission |
Nov. 9, 2004 |
| 6782246 |
Method for producing a test signal |
Aug. 24, 2004 |
| 6771940 |
Multi-channel peak power smoothing |
Aug. 3, 2004 |
| 6731916 |
Power amplifying apparatus for mobile phone |
May. 4, 2004 |
| 6711392 |
Balanced power amplifier for low power radio communications |
Mar. 23, 2004 |
| 6690945 |
Method for suppressing transients using a pulse shaping look-up table |
Feb. 10, 2004 |
| 6678506 |
Extended range power detector |
Jan. 13, 2004 |
| 6668162 |
Method and an arrangement for compensating the temperature drift of a detector and a control signal in periodic control |
Dec. 23, 2003 |
| 6549588 |
Communications system and corresponding receiver unit |
Apr. 15, 2003 |
| 6493333 |
Device and method for controlling transmission power of punctured frame |
Dec. 10, 2002 |
| 6341219 |
Single-source automatic power control method and apparatus for frequency-diverse variable-gain stages of a CDMA cellular handset |
Jan. 22, 2002 |
| 6289009 |
CDMA transceiver used in mobile communication system |
Sep. 11, 2001 |
| 6289205 |
Transmitter for communication devices |
Sep. 11, 2001 |
| 6263194 |
Transmitter cut off apparatus |
Jul. 17, 2001 |
| 6256483 |
Method and apparatus for calibration of a wireless transmitter |
Jul. 3, 2001 |
| 6233438 |
Wide-range power control systems and methods for radio frequency transmitters and mobile radiotelephones |
May. 15, 2001 |
| 6215986 |
Reducing radio transmitter distortion |
Apr. 10, 2001 |
| 6181922 |
Attenuator unit, step attenuator, and electronic apparatus |
Jan. 30, 2001 |
| 6128478 |
Apparatus and method for amplifying a radio frequency signal |
Oct. 3, 2000 |
| 6078793 |
High precision controlled gain voice processing system and method |
Jun. 20, 2000 |
| 6072363 |
Facility for combining and amplifying two broadband signals |
Jun. 6, 2000 |
| 6070056 |
Amplitude-phase correction circuit, receiving device and transmitting device |
May. 30, 2000 |
| 6058291 |
Methods and apparatus for carrier suppression in a radio modulator |
May. 2, 2000 |
| 6049707 |
Broadband multicarrier amplifier system and method using envelope elimination and restoration |
Apr. 11, 2000 |
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