U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 6125480

Vehicle mounted toilet seat

An extension member is attachable to a trailer hitch and extends away from the vehicle and is connected to a seating frame supporting a toilet seat.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 329/352 - Temperature compensation


Subclass of Class 329 - Demodulators
Definition: Subject matter in which undesirable effects of ambient temperature
No. of patents: 13
Last issue date: 06/05/2007


NumberTitleIssue Date
7228114Wide dynamic range power detection scheme
A power detection circuit is described that provides for a wide dynamic range power detection. The circuit incorporates a coupler to sample a transmitted or received power. Such sampled power is then directed to a detector diode configured to generate a voltage from...
06/05/2007
7183846Device for detecting the power of a signal and integrated circuit with amplifier and related power detection device
The present invention describes a device for detecting the power of a first signal at a given frequency. The device comprises a first circuit means for detecting the envelope of the first signal and a second circuit means coupled to the first circuit means and suita...
02/27/2007
7148748Active protection circuit for load mismatched power amplifier
A peak detector detects an amplifier output overvoltage condition if the amplifier drives a mismatched load impedance. In response to the detected overvoltage condition, a clamping transistor lowers a reference DC bias voltage supplied by a bias circuit to the ampli...
12/12/2006
7049805Radio frequency power measurement
An unknown RF power is converted to a voltage by a detector (11). The voltage is converted to a number by a digitiser (12). A separate and fixed RF power reference (14) drives a second detector (15), whose voltage output is also converted...
05/23/2006
6262630Rapidly-responding diode detector with temperature compensation
A diode detector that is stable and linear over a wide range of variations in both temperature and power supply voltage and can be used to regulate a.c. signals produced by devices that are responsive to control signals includes a detector diode and a fir...
07/17/2001
5659253Temperature compensated radio frequency detector circuit
An RF detector circuit (28), which may be utilized in an output power control loop (10) for an RF transmitter, includes a bridge circuit (50) including a first arm (52) containing a first diode (D2) which rectifies the RF signal and a second arm (54) whic...
08/19/1997
4866396Temperature stabilized RF detector
A temperature stabilized RF detector has a first diode connected between an input terminal for receiving an RF signal and an output terminal for outputting the detection signal of the RF signal, and a second diode connected between the input terminal and ...
09/12/1989
4820995Temperature stabilized RF detector
A temperature stabilized RF detector uses a series circuit including a detecting diode coupled in series with a similarly poled stabilizing diode so that a single current flows in a single direction through both diodes. The temperature related effects of ...
04/11/1989
4791380Detector circuit with dual-diode compensation
A detector circuit for radio-frequency signals is formed of a pair of matched diodes disposed on a common substrate which is heated by a temperature responsive feedback circuit to stabilize the temperature of the substrate and the diodes. A capacitor is c...
12/13/1988
4617474Signal detector
A detector is disclosed for receiving an AC signal and for generating a DC output signal indicative of the level of the input signal. The detector includes an amplifier receiving the input signal and a first transistor stage which responds to the amplifie...
10/14/1986
4490681Signal level detector with automatic switching between extended linear and square law dynamic ranges
A signal level detector including a diode envelope detector has a characteristic having both square-law and linear-law ranges separated by an intermediate transition range of variable-law operation. The detector is provided with circuits (38, 47, 48) to e...
12/25/1984
4320346Large dynamic range low distortion amplitude modulation detector apparatus
An amplitude modulation detection apparatus utilizing a balanced diode rectifier circuit to detect amplitude modulation on HF and VHF amplitude modulated carrier frequencies at rates approaching to the carrier frequency without diagonal clipping. A temper...
03/16/1982
4319196Temperature compensated wide dynamic range linear envelope detector
An amplitude modulation detection apparatus that includes an envelope detector portion having a pair of diode rectifiers electrically connected at their cathodes which common cathode connection is connected through a series resistor to the input of a low-...
03/09/1982
 
Sign InRegister
Username  
Password   
forgot password?