Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 4879756 | Radio broadcast communication systems The invention comprises a low power broadcast system that is applicable especially to the so-called "electronic shelf" for retail stores, wherein the shelf edge carries price displaying modules that can be addressed and controlled from a central computer ... | 11/07/1989 |
| 4864292 | Identification system An identification system, consisting of at least one stationary element and at least one movable element or token, the first element having a first induction coil adapted to generate a magnetic alternating field and being connected to a source of alternat... | 09/05/1989 |
| 4857893 | Single chip transponder device A transponder device receives a carrier signal from an interrogator unit. This carrier signal, of frequeny F, is rectified by a rectifying circuit in order to generate operating power. Logic/timing circuits derive a clock signal and second carrier signal ... | 08/15/1989 |
| 4857913 | Coded objects identifiable by proximity and devices for changing the codes of these objects The invention relates to electronic badges equipping portable objects, such as plastified cards and capable of being identified at a distance by suitable readers in order to ensure operation such as the unlocking of a lock. These badges are of a passive t... | 08/15/1989 |
| 4827395 | Manufacturing monitoring and control systems A system for controlling manufacturing systems having workstations and tools using a Limis system to operate the controllers for the tools. Limis systems use an active transceiver (AT) and one or more passive transceivers (PT). The PT's are attached to th... | 05/02/1989 |
| 4818855 | Identification system A remotely powered portable member having circuitry for storing and transmitting coded information. A first coupling device is provided for receiving a signal transmitted via one of a magnetic field and an electric field. A power circuit is connected to t... | 04/04/1989 |
| 4796028 | Apparatus for bidirectional data transmission An apparatus for bidirectional data transmission includes a predominantly stationary part with a data line connected to cause a phase shift of an osicllator signal for transmission to a predominantly mobile part. AC signal components of the oscillator sig... | 01/03/1989 |
| 4758836 | Inductive coupling system for the bi-directional transmission of digital data A bi-directional, digital data transmission system is disclosed for transmitting an interrogation signal in a first direction from an interrogation unit to a data gathering transponder unit, and a data return signal in a second direction from the meter or... | 07/19/1988 |
| 4742573 | Identification card including optically powered electronic circuit A card, such as a credit card or identification card, includes electronic circuitry which permits its identification by an identifying device. More particularly, optical radiation is transmitted from the identifying device to the card to be identified. Th... | 05/03/1988 |
| 4742470 | Tool identification system Provision is made for identifying tools used in an automated machine tool system. A module or transponder is mounted to the tool and interrogated by a transceiver which, in the preferred embodiments, has read/write capabilities. The transponder uses energ... | 05/03/1988 |
| 4720626 | IC card processing method and processing device therefor, and IC card The present invention discloses an IC card, and a processing device for the IC card and a processing method therefor. The IC card comprises a semiconductor IC in which a large number of data are stored. There are provided a winding which picks up an elect... | 01/19/1988 |
| 4688036 | Keyless entry system for automotive vehicle with power consumption saving feature A keyless entry system for an automotive vehicle allows operation of a vehicle device or devices without the need for an ignition key or other mechanical keys. A user can simply depress a single push-button or operate another suitable type of switch to ac... | 08/18/1987 |
| 4674618 | Tokens and token handling devices A token handling device transmits, using an electromagnetic carrier, data, clock pulses and power to a token. The token transmits data by varying the degree of absorbtion of the carrier in synchronism with the clock pulses. These data transmissions are de... | 06/23/1987 |
| 4656463 | LIMIS systems, devices and methods This invention relates to LIMIS systems, devices and methods. Specifically, it relates to the attachment of passive transceivers which can be altered or coded, erased and recoded to various items as "tags", and the use of active transceivers of various ty... | 04/07/1987 |
| 4630044 | Programmable inductively coupled transponder An automatic information transmission system for a mobile object, the system including a response unit arranged to be carried along with the mobile object, and an interrogation unit arranged to be disposed alongside the path of movement of the mobile obje... | 12/16/1986 |
| 4550444 | Facility for intermittent transmission of information between guideway wayside equipment and vehicles moving along the guideway A facility is disclosed comprising an on-board interrogator and a passive trackside transponder which transmits data messages to the interrogator on a single FM channel using, for instance, frequency shift techniques and draws the necessary transmitting e... | 10/29/1985 |
| 4549176 | Device for identifying an information particularly an electronic lock/key combination Device for identifying an information, particularly of an access control consisting of electronic lock and key part, wherein given approach of the key part toward the lock part, its oscillator part oscillates at a high frequency, the oscillation is picked... | 10/22/1985 |
| 4535401 | Apparatus and method for providing power from master controller to subcontrollers and data communication therebetween An apparatus having a two wire system for providing both power and data communication between a master controller and at least one subcontroller. The master controller can also be connected through the conductors to submaster controllers which in turn hav... | 08/13/1985 |
| 4533988 | On-chip CMOS bridge circuit There is disclosed a bridge circuit which finds particularly advantageous use in medical prostheses which can be programmed externally and which can transmit telemetry signals. The entire circuit is implemented on a single CMOS integrated circuit. Dependi... | 08/06/1985 |
| 4510495 | Remote passive identification system A system for passively identifying remote objects such as livestock is disclosed. A power transmitter transmits a plurality of radio frequency burst signals at a given frequency, and a uniquely coded transponder associated with the object to be identified... | 04/09/1985 |
| 4473825 | Electronic identification system with power input-output interlock and increased capabilities A portable electronic identification system comprised of an identifier preferably of credit card size, and a fixed position reader which couples to it over short distances by space transmitted signals. The identifier card is energized from and the resulti... | 09/25/1984 |
| 4463353 | Animal feeding and monitoring system The animal feeding and monitoring system includes an electronic identity tag having a code generator for generating a coded identifier signal uniquely associated with an animal to be identified. Electromagnetic energy from an RF field generator mounted in... | 07/31/1984 |
| 4459590 | Passive programmable transductor for dynamic coding A device for recording a variable information in a programmable hub, for storing it and for restoring it without contact or electrical connection and without electric supply between the hub and information generator or the information readers. The generat... | 07/10/1984 |
| 4413250 | Digital communication system for remote instruments A communication system for communicating digitally encoded information from a remote transmitting station to a central receiving station. The central station supplies d-c operating power to a remote station through a d-c power distribution line. A voltage... | 11/01/1983 |
| 4408185 | Process for transferring information and system for carrying out the process An arrangement for transferring both power and information on one or more common AC power lines in which a first type of information is transmitted by terminating the current from the power supply in periods which constitute a fraction of a halfwave cycle... | 10/04/1983 |
| 4364043 | Efficient object identification system A system for the remote identification of objects using near-field electromagnetic coupling between an interrogator a transponder and a receiver in which a reply carrier at a subharmonic of the interrogation frequency is obtained by regulating, with minim... | 12/14/1982 |
| 4333072 | Identification device A closed coupled identification system for verifying the identity of an animal, object or other thing, has a probe including a circuit adapted to be connected to a source of alternating current and a separate, preferably miniature, circuit adapted to be i... | 06/01/1982 |
| 4196418 | Detection plate for an identification system A detection plate for an identification system, comprising a resonant circuit, a switching device, and coding means, characterized in that the coding means comprises a digital circuit and is arranged to receive, in operation, supply voltage from the reson... | 04/01/1980 |
| 4132981 | Self-powered system for measuring and storing consumption of utility meter A system is disclosed for storing signals indicative of a customer's consumption of a utility as measured by a meter, such as adapted to measure the flow of water, gas or electricity, for example, and for storing a corresponding data word to permit subseq... | 01/02/1979 |
| 4048620 | Central station to addressed point communication system A communication system for the transfer of information between a central station and an addressed point has the points organized in decimal groups at different remote stations, and selects a point for communication after enabling the group thereof with a ... | 09/13/1977 |
| 4002837 | Transceiver A data receiver for transmitting interrogating signals to activate in sequence a plurality of data transponders, receiving data from the transponders, processing the data, correcting the data, storing the data in a temporary memory, and delivering the dat... | 01/11/1977 |
| 3970824 | Electronic recognition and identification system for identifying a family of codes An electronic recognition and identification system for recognizing and identifying any one of a family of electrically-coded external objects. The system comprises internal electronics including a pulse widening circuit which enables the system to be res... | 07/20/1976 |
| 3964024 | Transponder for an automatic vehicle identification system This disclosure relates to an inductively powered type of electronic transponder for identifying a moving object passing an interrogation area. The transponder includes a tuned inductive-capacitive pick-up circuit for receiving interrogating signals. The ... | 06/15/1976 |
