US Patent No: 5,530,702
Number of patents in Portfolio can not be more than 2000
System for storage and communication of information
Stats
-
Jun 25, 1996
Issued date -
May 31, 1994
filing date -
08/251,522
serial no -
In Force
status
Importance
Loading Importance Indicators...
Abstract
A system and method for storage and communication of information between at least one first information containing terminal and a second terminal. The system and method includes generating a random number within the first terminal in response to receipt of a begin signal from the second terminal, and comparing the random number to a count incremented and maintained by a digital counter within the first terminal. When the random number is equal to the count, the first terminal transmits a request to transmit signal to the second terminal. If the second terminal responds with a first acknowledgment, the first terminal then sends an information containing signal to the second terminal. If the information containing signal is correctly received, the second terminal responds by transmitting a second acknowledgment which is received by the first terminal.
Loading the Abstract Image...
First Claim
Related Publications
Loading Related Publications...
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
|
|
|||
| 4,519,029 Data communications system with automatic communications mode | 14 | 1981 | |
| 4,535,401 Apparatus and method for providing power from master controller to subcontrollers and data communication therebetween | 82 | 1982 | |
| 4,677,614 Data communication system and method and communication controller and method therefor, having a data/clock synchronizer and method | 54 | 1983 | |
| 4,941,123 Data communications system with automatic communications mode | 16 | 1984 | |
| 4,777,591 Microprocessor with integrated CPU, RAM, timer, and bus arbiter for data communications systems | 46 | 1986 | |
| 4,992,794 Transponder and method for the production thereof | 146 | 1989 | |
| 5,083,113 Inductive coupled object identification system and method | 17 | 1990 | |
| 5,148,404 Transponder and method for the production thereof | 23 | 1991 | |
| 5,247,304 Interrogating station for identification purposes, with separate transmitting and receiving antennae | 67 | 1992 | |
|
|
|||
| 4,339,753 Vehicle identification system | 23 | 1979 | |
| 4,538,262 Multiplex bus system for controlling the transmission of data between a master control unit and a plurality of remotely located receiver-transmitter units | 59 | 1983 | |
| 4,646,090 Codeable identifying tag and method of identification thereof | 30 | 1983 | |
| 4,647,931 Dual frequency identification system | 21 | 1984 | |
| 4,872,014 Object identification system and method utilizing radiometry | 7 | 1985 | |
| 4,646,295 Frequency-division multiplex communications system having grouped transmitters and receivers | 8 | 1985 | |
|
|
|||
| 5,041,826 Identification system | 118 | 1990 | |
| 5,166,676 Identification system | 176 | 1990 | |
| 5,211,129 Syringe-implantable identification transponder | 112 | 1991 | |
|
|
|||
| 5,053,774 Transponder arrangement | 329 | 1991 | |
| 5,270,717 Extended range RF-ID transponder | 27 | 1992 | |
| 5,287,113 Voltage limiting batteryless transponder circuit | 31 | 1993 | |
|
|
|||
| 5,018,138 Protocol for network having a plurality of intelligent cells | 67 | 1988 | |
| 5,319,641 Multiaccess carrier sensing network communication protocol with priority messages | 69 | 1990 | |
|
|
|||
| 4,546,241 Electronic proximity identification system | 89 | 1982 | |
| 4,730,188 Identification system | 180 | 1985 | |
|
|
|||
| 4,792,018 System for security processing of retailed articles | 111 | 1985 | |
| 4,964,053 Self-checkout of produce items | 102 | 1989 | |
|
|
|||
| 4,644,561 Modem for RF subscriber telephone system | 32 | 1985 | |
| 4,675,863 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels | 279 | 1985 | |
|
|
|||
| 4,644,348 Apparatus for providing masterless collision detection | 27 | 1984 | |
|
|
|||
| 4,543,654 Interfacing a communication network | 19 | 1983 | |
|
|
|||
| 5,151,895 Terminal server architecture | 13 | 1990 | |
|
|
|||
| 5,218,189 Binary encoded multiple frequency RF indentification tag | 123 | 1991 | |
|
|
|||
| 4,593,281 Local area network interframe delay controller | 23 | 1983 | |
|
|
|||
| 5,227,803 Transponder location and tracking system and method | 58 | 1992 | |
|
|
|||
| 4,926,415 Local area network system for efficiently transferring messages of different sizes | 41 | 1988 | |
|
|
|||
| 5,121,103 Load isolated article surveillance system and antenna assembly | 29 | 1988 | |
|
|
|||
| 5,239,167 Checkout system | 58 | 1991 | |
|
|
|||
| 5,383,134 Data transmission device, system and method | 74 | 1994 | |
|
|
|||
| 4,590,467 Local area network interface controller | 44 | 1983 | |
|
|
|||
| 4,862,160 Item identification tag for rapid inventory data acquisition system | 238 | 1987 | |
|
|
|||
| 5,005,125 Surveillance, pricing and inventory system | 54 | 1986 | |
|
|
|||
| 4,554,446 Supermarket inventory control system and method | 207 | 1983 | |
|
|
|||
| 5,151,684 Electronic inventory label and security apparatus | 275 | 1991 | |
|
|
|||
| 5,276,899 Multi processor sorting network for sorting while transmitting concurrently presented messages by message content to deliver a highest priority message | 109 | 1990 | |
|
|
|||
| 5,073,781 Transponder | 27 | 1991 | |
|
|
|||
| 4,352,183 Information transmission system | 31 | 1980 | |
|
|
|||
| 4,409,592 Multipoint packet data communication system using random access and collision detection techniques | 60 | 1981 | |
| 5,012,469 Adaptive hybrid multiple access protocols | 199 | 1988 | |