Bizarre Patents
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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.
| Number | Title | Issue Date |
| D539855 | Toy | 04/03/2007 |
| D536044 | Toy with interchangeable parts | 01/30/2007 |
| 7152247 | Tactical jacket for a police officer A jacket is provided for a law-enforcement officer. The jacket includes a plurality of receptacles adapted to receive police equipment disposed within a secure area of the jacket and a closure disposed on each of the plurality of pockets having an orientation so tha... | 12/26/2006 |
| 5369781 | Dispatch communication system with adjacent system signal repeating A dispatch communication system wherein a communication unit may move from the service coverage area of a first system to the service coverage area of a second system during a communication transaction without the need to re-initiate the call. Communicati... | 11/29/1994 |
| 5363371 | Mobile ISDN radio system A system is described for providing ISDN services on a PSTN to communication units from an ISDN interface within a resource controller. The communication unit is allowed access to a target such as a subscriber within the PSTN or a communication unit in an... | 11/08/1994 |
| 5327575 | Directional handover control in digital mobile radio systems employing MAHO A method of selecting handover targets for a communication unit exchanging a communicated signal through a serving base site in a digital cellular system. The method uses timing advance to determine a relative distance of a communication unit to the servi... | 07/05/1994 |
| 5309443 | Dynamic muting method for ADPCM coded speech A method and apparatus are provided for muting a audio signal in a digital communication system. The method includes the steps of integrating an indicated error per frame for a time interval and comparing the integrated value with a threshold. The method ... | 05/03/1994 |
| 5303407 | Digital squelch tail circuit for two-way radio communication systems A squelch tail circuit (20) is provided capable of incorporation within integrated circuit structures. A digital timer (26 and 27) provides a time delay based upon a feed-back comparison providing a long time delay to weak signals and a short time delay t... | 04/12/1994 |
| 5299228 | Method and apparatus of reducing power consumption in a CDMA communication unit A method of, and means for, exchanging a communicated signal with a base site (10) by a communication unit (20) within a cellular system is provided. The method includes the steps of, and means for, transceiving the communicated signal under a broadband f... | 03/29/1994 |
| 5295136 | Method of performing convergence in a, least mean square, adaptive filter, echo canceller A method is described of decreasing convergence time in an adaptive echo canceller. The method includes the step of locating a primary echo within a filter vector based upon relative tap values within the filter vector. The filter vector is then narrowed,... | 03/15/1994 |
| 5287544 | Method of channel assignment by matching channel interference with channel link loss A method is offered of achieving a desired C/I ratio within a cellular system, at reduced transmitter power levels, by measuring a signal loss on a downlink between a base site transmitter (31) and mobile receiver (20) and calculating an uplink signal mag... | 02/15/1994 |
| 5274844 | Beam pattern equalization method for an adaptive array A method is offered of automatically beamforming a radio frequency transmitter having an array antenna. The beamformed signal is transmitted for the benefit of a target communication unit based upon characteristics of a received signal. The method include... | 12/28/1993 |
| 5249304 | Access and control system for a digital queued repeater A system for allocating communication resources in a communication system where only a single frequency pair may be available for use by many users. A system wherein a resource controller transmits control information on a resource to many potential users... | 09/28/1993 |
| 5247701 | On-site/trunking system frequency sharing Shown, herein, is a method of allowing use of small, low-power communication systems within the service coverage area of larger trunked systems. The small, low-power systems are constructed to reuse at least some of the communication resources, also used ... | 09/21/1993 |
| 5228029 | Cellular TDM communication system employing offset frame synchronization An RF cellular TDM communication system employing offset frame synchronization between cells, any cell being omni-directional or directional, such that a frame at one cell is offset by an integral number of frames from another cell; the system incorporati... | 07/13/1993 |
| 5224121 | Rolling synthesizer method for baseband slow frequency hopping A method and apparatus is offered of exchanging a communicated signal at a base site with a communication unit on an indexed frequency of a frequency hopping communication system. The method includes the steps of transceiving, through a first base site tr... | 06/29/1993 |
| 5212805 | Near-field on-site/trunking system frequency sharing Shown, herein, is a method of allowing use of small, low-power communication systems within the service coverage area of larger trunked systems. The small, low-power systems are constructed to reuse at least some of the inbound frequencies of communicatio... | 05/18/1993 |
| 5193101 | On-site system frequency sharing with trunking systems using spread spectrum A way of allowing small, low-power communication units to reuse trunked system communication resources within the service coverage area of the larger trunked system without experiencing significant interference from the trunked system. The low power units... | 03/09/1993 |
| 5179373 | Information network This invention relates to an information network such as a telepoint network, having discrete communications units, such as telephone communications handsets (14), where each unit has a user-inaccessible memory. The invention also applies to networks of o... | 01/12/1993 |
| 5161169 | DCD with reprogramming instructions contained in removable cartridge A digital communications device with a removeable cartridge is disclosed for programming the functions and primary operations into a digital communications device as for example a modem. Examples of programmable functions include data transmission rates, ... | 11/03/1992 |
| 5131038 | Portable authentification system A personal identity authentification system is provided in which parametric data of an authorized possessor is encrypted into a memory of a portable transceiver device. The portable transceiver device, carried by a possessor, may be activated by an identi... | 07/14/1992 |
| 5093638 | Unbalanced saw filter An unbalanced surface acoustic wave (SAW) resonator-filter is achieved by using a predetermined length of unbalanced transmission line to define a ground potential and permit two SAW resonators and such transmission line to function together as an unbalan... | 03/03/1992 |
| 5081669 | Assignable speakers for channels at a trunked console operator position A console speaker assignment system that is self-prompting and which allows speaker assignment to be changed without interrupting the reception of audio signals or without interrupting normal console operation.... | 01/14/1992 |
| 5073000 | Optical interconnect printed circuit structure A digital inter and intra printed circuit board communication system wherein high speed data transfers occur using fiber optics signals. Ease of connection of the fiber optics wave-guides is facilitated through the use of wave-guides embedded with the cir... | 12/17/1991 |
| 5060296 | Communication system with squelch control A trunked communication system (100) wherein an EOT (308) as transmitted by a communication unit (103) is used by the system to initiate a squelch methodology, but is not used by the resource controller (101) to determine reallocation of the communication... | 10/22/1991 |
| 5058199 | Inter-truncked radio systems bridge protocol A radio signal relay system for use with dispatch communication systems is disclosed. The radio signal relay system includes a linking device constructed with a first and a second full duplex transceivers such that it has the capability of communicating w... | 10/15/1991 |
| 5054110 | Multi-site dispatching system cell registration A trunked communication system wherein less than all of the communication units may transmit an identifying data word thereby registering their location to a system controller every time they enter a different coverage area, while the remainder of the com... | 10/01/1991 |
| 5001666 | Multiple interrupt tri-level microprocessor operating system A multiple interrupt tri-level microprocessor operating system (40) having particularly applicability in a two-way radio, includes an operating system that provides a background executive (47) to allow processing of time insensitive tasks, a foreground ro... | 03/19/1991 |
