| 6999567 |
Method and system for communicating from an automatic meter reader |
| Feb-14-2006 |
In a system where an automatic meter reader device communicates with a host at a remote location using a communication line that is shared with at least one other user, conflicts between the use of the... |
| 6959292 |
Method and system for providing value-added services |
| Oct-25-2005 |
A system and method is disclosed for providing confirmation relating to the distribution of a mailpiece within an international mailing system. The invention includes a determination of postal data required... |
| 6954739 |
Measurement-based management method for packet communication networks |
| Oct-11-2005 |
Disclosed are network management procedures that apply measurements of traffic load to achieve greater efficiency in the operation of the network. In a method for deciding whether to route an incoming... |
| 6813614 |
Method for re-keying postage metering devices |
| Nov-2-2004 |
A method for communicating a re-keying message from a postage meter to a registration authority includes the steps of determining at the postage meter that a current key needs to be replaced with a new... |
| 6738693 |
Multiple virtual meters in one physical meter |
| May-18-2004 |
A utility meter which provides multiple concurrent registering of commodity consumption data includes a source of commodity consumption signals, a measurement circuit, and a registering circuit. The source... |
| 6529883 |
Prepayment energy metering system with two-way smart card communications |
| Mar-4-2003 |
A pre-payment energy metering system uses two-way smart card communications. Secure power line carrier communications are provided at the consumer locations communication between a customer terminal and... |
| 6457038 |
Wide area network operation's center that sends and receives data from vending machines |
| Sep-24-2002 |
A remote data acquisition and transmission system and method are disclosed. A plurality of application controllers are interfaced with remote equipment from which operation data is acquired by the application... |
| 6401081 |
Modular object-based architecture for extensible master station software |
| Jun-4-2002 |
Conventional AMR and DA/DSM systems typically suffer from a lack of extensibility due to the monolithic nature of the master station software. In contrast, this patent describes a system that is comprised... |
| 6397328 |
Method for verifying the expected postage security device and an authorized host system |
| May-28-2002 |
A method for verifying that the expected components of a postage metering system includes alternate embodiments for verifying a PSD coupled to a host system is the expected PSD. The method further includes... |
| 6393341 |
Architecture neutral device abstraction layer for interfacing devices and applications |
| May-21-2002 |
An interface layer and method is provided that permits applications, without modification, to operate with any type of meter. The interface comprises an abstraction layer and library or repository of descriptions... |
| 6289453 |
Method and apparatus for secure measurement certification |
| Sep-11-2001 |
The invention relates to methods and apparatuses for acquiring a physical measurement, and for creating a cryptographic certification of that measurement, such that its value and time can be verified by... |
| 6073125 |
Token key distribution system controlled acceptance mail payment and evidencing system |
| Jun-6-2000 |
A method for controlled acceptance mail accounting and evidencing, includes creating a mail batch including at least one mail piece having an encrypted indicia printed thereon. The encrypted indicia is... |
| 6000034 |
Security system and method for revenue class electricity meter |
| Dec-7-1999 |
A security system for programmable revenue class electricity meters. Each programmable revenue class electricity meter includes a metering portion or stage that couples to a power line. The metering portion... |
| 5963650 |
Method and apparatus for a customizable low power RF telemetry system with high performance reduced data rate |
| Oct-5-1999 |
A customizable data acquisition device (DA) and a data collection system (DCS). The DA is remotely located for attachment to a variety of I/O devices, and uses an RF transceiver with a primary cache. A... |
| 5828751 |
Method and apparatus for secure measurement certification |
| Oct-27-1998 |
The invention relates to methods and apparatuses for acquiring a physical measurement, and for creating a cryptographic certification of that measurement, such that its value and time can be verified by... |
| 5715390 |
Method and apparatus for providing upgrades in electricity meters |
| Feb-3-1998 |
An electricity meter having a protected enabling scheme for activating meter options and upgrades is presented. The meter has a unique serial number, which includes bit-flags indicating which options have... |
| 5539822 |
System and method for subscriber interactivity in a television system |
| Jul-23-1996 |
A system for providing interactive services in a subscription television system comprises a system network controller for controlling the interactive services having controller memory for storing subscriber... |
| 5448638 |
Security apparatus and system for retail environments |
| Sep-5-1995 |
A gasoline service station includes gasoline dispensers and a PIN pad including keypads for receiving personal identification numbers and assembled into a network for securely communicating personal identification... |
| 5377268 |
Metering system with remotely resettable time lockout |
| Dec-27-1994 |
A metering system requires a user to provide periodic, accurate meter readings to a billing authority. The metering system includes a mechanism for dispensing postage or another accountable quantity, an... |
| 5239584 |
Method and apparatus for encryption/authentication of data in energy metering applications |
| Aug-24-1993 |
In one embodiment, the present invention is an encryption/decryption and authentication algorithm. The algorithm has three major steps. The first step is generating cipher text. The second step is generating... |
| 4937862 |
Remote monitoring device |
| Jun-26-1990 |
A miniaturized DNR monitoring device is adapted to communicate over a telephone line, or otherwise, with a remote unit which may also communicate with other monitoring units. The monitoring device includes... |
| 4873721 |
Device for starting charging in a pay phone |
| Oct-10-1989 |
The present invention relates to a device for starting telephone charging in a pay phone. The starting device essentially comprises a scrambler circuit (42) which is inserted in the line (26) when the... |
| 4866770 |
Method and apparatus for communication of video, audio, teletext, and data to groups of decoders in a communication system |
| Sep-12-1989 |
A communication system enabling transmission of individual subscriber teletext messages, audio and video to individual subscribers and permitting group communications of audio, video, teletext and data... |
| 4850018 |
Security system with enhanced protection against compromising |
| Jul-18-1989 |
A security system for a protected premise has a controller which receives data, over a pair of line conductors, from the addressed transponder of a series of addressable transponders located within the... |
| 4731575 |
Prepayment metering system using encoded purchase cards |
| Mar-15-1988 |
A prepayment utility metering method and apparatus which uses encoded mag-stripe cards to transfer purchase information from the utility billing office to the customer's premises. The mag-stripe cards... |
| 4530008 |
Secured communications system |
| Jul-16-1985 |
Apparatus and method for reducing the cost and complexity of equipment placed on subscribers' premises in a subscription communications system, such as a cable television system, while at the same time... |
| 4450481 |
Tamper-resistant, expandable communications system |
| May-22-1984 |
An expandable, multipurpose digital and analog communications system in which a plurality of remote interrogator units connected in a branch of the system are isolated from one another by band stop filters... |
| 4253158 |
System for securing postage printing transactions |
| Feb-24-1981 |
A postage meter includes printing and accounting stations interconnected through an insecure communications link. Each time the meter is tripped, a number generator at the printing station is activated... |
