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

Icon_funbox Did You Know...

...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.

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 340/504 - Answer-back


Subclass of Class 340 - Communications: electrical
Definition: Subject matter where a signal indicative of receipt of the
No. of patents: 27
Last issue date: 08/19/2008


NumberTitleIssue Date
7414525Remote monitoring of remediation systems
Systems and methods for remotely testing the operational status of a remediation system installed within a building or structure are disclosed. An illustrative remote monitoring system can include a sensor adapted to sense at least one characteristic of the remediat...
08/19/2008
7319414Secure notification messaging systems and methods using authentication indicia
Systems and methods are disclosed for notification or messaging systems that give confidence to the notification-receiving party that a notification concerning the travel status of a mobile thing is from a proper authorized source. One representative method, among o...
01/15/2008
7249111Method of assigning value codes
Method for distribution of value codes configured to be cashed in to obtain credit for services subject to charges. The value codes are generated and stored in a database of a value code issuer. A value code is ordered by a customer through transmission of order dat...
07/24/2007
7119716Response systems and methods for notification systems for modifying future notifications
Response systems and methods are disclosed for communications in connection with a computer-based notification system and a personal communications device (e.g., telephone, pager, computer, PDA, etc.) associated with a party. One such representative response method,...
10/10/2006
7109878External infusion device with remote programming, bolus estimator and/or vibration alarm capabilities
An infusion system for infusing a liquid into a body includes an external infusion device and a remote commander. The external infusion device includes a housing, a receiver, a processor and an indication device. The receiver is coupled to the housing and for receiv...
09/19/2006
7068434Sheeting with composite image that floats
Microlens sheetings with composite images are disclosed, in which the composite image floats above or below the sheeting, or both. The composite image may be two-dimensional or three-dimensional. Methods for providing such an imaged sheeting, including by the applic...
06/27/2006
7035774Portable terminal and message notifying system using the same
A portable terminal carried by an operator of a target apparatus includes a communicating device for conducting wireless communication and a first information acquiring device for acquiring first information related to the target apparatus from the target apparatus ...
04/25/2006
6995664Remote supervision system and method
A new and improved method for supervising and monitoring people from a remote location comprising the use of a communication system that builds upon telecommunications connections, computer interfaces, and information management via the internet. Strategically place...
02/07/2006
6911904System and method for adaptive variable magnetic field generator
A system for controlling a magnetic field strength includes a magnetic field generator for generating a magnetic field for receipt by a responsive device and a controller in communication with the magnetic field generator for determining a strength of the magnetic f...
06/28/2005
6885304Monitoring of crowd response to performances
Monitoring apparatus and methods for monitoring the reaction of people to a performance use two or more monitoring devices of different types. Output signals from the monitoring devices are combined to produce at least one crowd reaction signal indicative of the rea...
04/26/2005
6882271Automated medical imaging system repair diagnostics
The need for service repair calls for a medical imaging system is reduced by enabling the operator to diagnose and, at times, to repair system problems without calling a repair service. A system diagnostics package includes an interactive diagnostic procedure which ...
04/19/2005
6816067Apparatus and method for selecting wireless devices
A method and apparatus for identifying and selecting a desired wireless device from multiple available wireless devices is provided. In one embodiment, the desired wireless device receives a signal from a searching wireless device. An indicator on the desired wirele...
11/09/2004
6799031Local combined telephone and alarm system
The invention concerns a local combined telephone and an alarm system comprising a central base communicating through two-way radio channel, according to a multiple access communication protocol, with telephone stations and detectors adapted to detect an emergency s...
09/28/2004
6778084Interactive wireless surveillance and security system and associated method
A surveillance and security system, adapted to be applicable to a premises, is provided. The system comprises a system component installed on and capable of interacting with the premises. A wireless command unit is configured to communicate with and control the syst...
08/17/2004
6744348Security system utilizing group supervision polling
In a security system that has a large number of individually-addressable modules interconnected on a data bus to a control panel, a method of concurrently supervising the modules by first configuring each module with a unique zone number including a group number and...
06/01/2004
6741172Voice-to-data equipment installation set up method and system
A system and method are provided for transmitting equipment installation data between an equipment installer and an operations center server. An installer of equipment, such as a monitoring device attached to a vehicle, calls an operations center server via a wirele...
05/25/2004
6498563Synchronized communication system
A communication protocol facilitates transmission at maximum rates for various types of cables. Signal to noise characteristics are improved by using voltage waveforms. The protocol can be used to transmit information between a common control unit and a p...
12/24/2002
6377169Transmitted signal confirmation device, vehicular transmitted signal confirmation device and confirmation method of transmitted signal
A transmitted signal confirmation device includes a transmitter, a receiver, a situation detecting device, an indicating mode determining device, and an indicator. The transmitter transmits the signal of a location of an individual (e.g., a vehicle). The ...
04/23/2002
6252501Message repeating apparatus and method
A multi-processor communication system includes a plurality of processors in bidirectional communication with one another. One processor can transmit a message to an intended recipient. The message can be correctly received by other processors. In the eve...
06/26/2001
5729196Personal location and message system and unit
A portable receiving/transmitting unit is adapted to communicate with a master station, the master station being associated with a plurality of base stations, a plurality of pagers and a plurality of individual receiving/transmitting units. The portable r...
03/17/1998
5260700Enhanced throughput in simulcast communication systems
A selective call receiver system includes a plurality of base sites capable of simultaneous operation. Each base site includes a transmitter and a base receiver capable of measuring the signal strength of a received signal. A controller coupled to the plu...
11/09/1993
5159315Communication system with environmental condition detection capability
A communication system (200) includes a portable radio (100) which has environmental detection capabilities. The radio (100) upon detecting the presence of an environmental condition such as smoke above a predetermined threshold, transmits an information ...
10/27/1992
4616214Security system
A CATV system includes a security system incorporated therein through which a subscriber can automatically or manually transmit various warning or emergency signals to the CATV base station. Apparatus at the base operates to determine the type of warning ...
10/07/1986
4377870Electronic audience polling system
An audience polling system includes a plurality of wireless transmitters, each transmitter capable of transmitting a pulse of electromagnetic energy on a selected one of a group of predetermined frequencies. Each frequency selected on which to transmit co...
03/22/1983
4282517Automatic ringback for direct current monitoring system
A ringback circuit in a security protection system, of the type which monitors a dc current, automatically reports to remote premises that the central station has, at an appropriate time, received an indication that the dc current has been changed to the ...
08/04/1981
4101875Multi-satellite intrusion alarm control system
An intrusion alarm system has a number of satellites each connected to a master by an unshielded cable having only four conductors, namely two power conductors, a drive signal conductor which supplies drive to the satellite transmitter and the satellite c...
07/18/1978
 
Sign InRegister
Username  
Password   
forgot password?