Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7333922 | System and method of monitoring machine performance A method of monitoring machine operation includes sensing an operating characteristic of a plurality of machines and calculating a performance metric. The performance metric is indicative of the operating characteristic of at least a portion of the plurality of mach... | 02/19/2008 |
| 7324825 | Remote telemetry device The systems and methods disclosed herein relate to digital data communication systems, and more particularly, the systems and methods relate to systems and methods for facilitating digital communication between a modem equipped meter and a central data acquisition s... | 01/29/2008 |
| 7257205 | Method and apparatus for communicating with one of plural devices associated with a single telephone number during a disaster and disaster recovery A system for (and a method of) selectively establishing communication with one of plural devices associated with a single telephone number during a disaster or disaster recovery period. In a preferred embodiment, the system includes two wireless connection units, ea... | 08/14/2007 |
| 7133850 | Postage system having telephone answering and message retrieval capability A postage system includes a data center, a population of postage metering systems and a control system that is in operative communication with the data center and the population of postage metering systems. The population of postage metering systems are located remo... | 11/07/2006 |
| 7127322 | Method and system for the electronic provision of services for machines via a data communication link Expert knowledge from machine manufacturers is applied quickly at any time to a machine via the Internet, by providing a main computer (host) for the production and provision of machine-related data and/or services and a machine-side working computer (client). The m... | 10/24/2006 |
| 7110778 | Remote telemetry device The systems and methods disclosed herein relate to digital data communication systems, and more particularly, the systems and methods relate to systems and methods for facilitating digital communication between a modem equipped meter and a central data acquisition s... | 09/19/2006 |
| 6954742 | Closed loop postage metering system A closed loop postage metering system includes networked meters that provide mailers and/or recipients the capability to request additional or modified services during processing of a mail piece by a carrier. The networked meter allows the Post to charge the mailer,... | 10/11/2005 |
| 6509829 | System and method for locating individuals and equipment, airline reservation system, communication system A system for locating an individual in a facility, the system comprising a portable wireless transponder device borne by the individual; an interrogator; and a plurality of antennas distributed in the facility, the antennas being selectively separately co... | 01/21/2003 |
| 6240167 | Telephone-linked commodity-billing method A method for billing consumers of on-demand commodities consumed at a site remote from the site at which they are produced. It is modeled after certain contemporary telephone-company billing practices, though it is not limited to use with telephone compan... | 05/29/2001 |
| 6127917 | System and method for locating individuals and equipment, airline reservation system, communication system A system for locating an individual in a facility, the system including a portable wireless transponder device borne by the individual; an interrogator; and a plurality of antennas distributed in the facility, the antennas being selectively separately con... | 10/03/2000 |
| 6016339 | Telecommunication network using signalling without activating alerting devices in consumer's premises A telecommunications network includes digital main switching units and local exchanges. The local exchange is arranged to permit alternative alert signals to consumer premises by way of the local loop. The alternative signals may be cadenced to provide in... | 01/18/2000 |
| 5995806 | Radio data transmitter and receiver A radio data transmitter includes radio switching circuit which is activated in response to first radio signal having a predetermined particular pattern, and a data transmitter unit. The data unit transmits a first radio signal include a carrier modulated... | 11/30/1999 |
| 5914671 | System and method for locating individuals and equipment, airline reservation system, communication system A system for locating an individual in a facility, the system including a portable wireless transponder device borne by the individual; an interrogator; and a plurality of antennas distributed in the facility, the antennas being selectively separately con... | 06/22/1999 |
| 5864545 | System and method for improving convergence during modem training and reducing computational load during steady-state modem operations A phase-splitting T/3 equalizer and echo canceller structure is computationally efficient because only one point per baud is calculated. However, there are two drawbacks to the structure: (1) since the equalizer performs both the phase-splitting function ... | 01/26/1999 |
| 5825849 | Loop-back test system using a suppressed ringing connection The test system of the invention uses suppressed ringing connections from a test unit to the customer premise equipment via the central office to establish connections for performing the loop-back test. The suppressed ringing connections are established o... | 10/20/1998 |
| 5454031 | Dial inbound meter interface unit which derives its power from a telephone line The present invention is a dial in-bound MIU capable of deriving its operating current from a telephone line. The MIU is coupled to the telephone line using conventional practices. The MIU has the capacity to initiate data transmission at a predetermined ... | 09/26/1995 |
| 5402475 | Monitoring and control of parking management system by remote Parking machines communicate automatically with service personnel located at a central station in response to the occurrence of a machine error. The service personnel are thus made aware promptly of this situation without having to travel to the site of e... | 03/28/1995 |
| 5197094 | System for remotely crediting and billing usage of electronic entertainment machines A method and apparatus for remotely crediting and billing usage of a plurality of electronic entertainment machines situated at different locations. Each electronic entertainment is connected via a transmission link to a billing computer situated at a cen... | 03/23/1993 |
| 4829560 | Communications system for use in a hotel/motel A communications system for use in a coaxial cable data transmission system such as in a hotel/motel system between a central processor and a room and the room and appliances within the room wherein frequency shift key modulation of a high frequency signa... | 05/09/1989 |
| 4752950 | Remote control system for franking machines A remote control system for a set of machines (1) for franking mail, which machines are geographically dispersed in accordance with user requirements and include franking heads whose use is monitored by a distant central organization. Each franking head i... | 06/21/1988 |
| 4741022 | Remote subscriber interaction system A central control unit (scanner) is connected across a set of subscriber loops. At each subscriber's premises, an individual subscriber terminal unit (STU) is connected across that particular subscriber's loop. To each STU are connected the various instru... | 04/26/1988 |
| 4691344 | Low-powered remote sensor and telephone line transmitter A data transmitter unit (22) for transmitting data over conventional telephone lines (26) from a remote location (24) to a central location (28). The data transmitter unit (22) derives its operational power supply from the telephone lines (26) to which it... | 09/01/1987 |
| 4578539 | Interrogation device An interrogation unit for connecting into an installation via sensing elements connected to sense required information in the installation, said interrogation unit having signal supplying means for supplying signals indicative of the condition of each of ... | 03/25/1986 |
| 4528423 | Remote subscriber terminal unit A central control unit (scanner) is connected across a set of subscriber loops. At each subscriber's premises, an individual subscriber terminal unit (STU) is connected across that particular subscriber's loop. To each STU are connected the various instru... | 07/09/1985 |
| 4390953 | Unmanned diagnostic communications system for computer controlled machine tools An unmanned diagnostic communications system for analyzing the operation of a remotely situated computer controlled machine tool and for diagnosing any abnormalities disclosed during machine tool operation includes an auto dialer and MODEM coupled between... | 06/28/1983 |
| 4385384 | Modem diagnostic and control system A system for diagnosing and controlling operation of a plurality of modems, some located at a central site and others at various remote sites. A processor located at the central site selectively addresses microprocessor test and control units at each mode... | 05/24/1983 |
| 4314102 | Post office box monitoring system A system for detecting the presence of mail in a post office box. A post office box holder calls a telephone number which accesses a computer. The computer contains data representative of the presence or absence of letters in a plurality of post office bo... | 02/02/1982 |
| 4097696 | Method and apparatus for polling security alarm installations A centrally located polling system uses conventional telephone dial networks and a means for digital telecommunication to periodically interrogate remote site alarm installations for security related information. Apparatus at the central location retrieve... | 06/27/1978 |
| 4006461 | System for transmitting operating condition data from a passive station to a central station The system includes a passive station dedicated to the control and acquisition of data of an electronic apparatus and arranged for communication with a central station over a non-dedicated voice band-width communication link with connections being establi... | 02/01/1977 |
