Henry A. Bogut - Coral Springs FL Louis F. Abramczyk - Sunrise FL Lawrence A. Myers - Pompano Beach FL
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
F16L 5500
US Classification:
138103
Abstract:
A fire hose (100) includes one or more conductors (107) acting as a feed line that is integrally woven into the fire hose side wall (109) and extending at least partially along a predetermined length of hose. One or more slots (113) expose the conductor (107) for transmitting and receiving radio frequency (RF) energy. The RF energy is transmitted and received bi-directionally along into the conductor (107) along the length of the fire hose. This provides stations positioned along the fire hose to have enhanced two-way radio communication without the disadvantage of signal degradation due to a firefighter's location within a building.
Intrinsic Safe Battery Having Self Test Capability
James L. Tidwell - Davie FL Henry A. Bogut - Coral Springs FL
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
H07M 200
US Classification:
429 7
Abstract:
A battery having a self testing feature for its intrinsic safety circuitry is provided. The battery uses light emitting diodes to indicate the operation of safety circuit in the battery. The safety circuitry of the battery may be tested by providing a short across the battery terminals, if the associated circuitry is operational the light emitting diode will light. This feature will also indicate, when the load across the battery is shorted.
Method And Apparatus For Charging A Battery Powered Electronic Device
Henry A. Bogut - Coral Springs FL Joseph Patino - Plantation FL Allen L. Christenson - Tamarac FL
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
H02J 704
US Classification:
320 22
Abstract:
A battery charger (102) includes an input terminal (124) for receiving control signals from radio (104). The control signals are received by a charge controller (112) which provides a charge rate to radio battery pack (106) which is a function of the control signal. Radio (104) includes a controller (126) which can sense the state of the radio battery pack (106), as well as changes in the state of radio (104). Controller (126) can then modify the control signal sent to charger (102) and therefor the battery charge rate proved by charger (102) based on certain changes in the state of battery pack (106) or radio (104).
Henry A. Bogut - Coral Springs FL Anthony Dolezal - Pompano Beach FL Jose M. Fernandez - Plantation FL
Assignee:
Motorola Inc. - Schaumburg IL
International Classification:
H01H 3514
US Classification:
200 6152
Abstract:
Briefly, according to the invention, a tilt switch 30 comprises a body 20 including a substantially conical cavity. The substantially conical cavity has at least a portion 24 which is electrically conductive. The tilt switch further has an electrical contact 32 spaced from the conductive portion 24 of the cavity. Finally, a conductive ball 34 located within the cavity selectively interconnects the electrical contact 32 and the conductive portion 24 of the cavity when the tilt switch 30 is tilted. In another aspect of the invention, a jitter switch 40 comprises a body 50 including a substantially concave shaped cavity. The substantially concave cavity has a curved bottom surface having a conductive portion (48) thereon and a sidewall having a separate conductive portion (44) thereon. A conductive ball 46 within the cavity intermittently interconnects the conductive portion of the bottom surface 48 with the conductive portion on the sidewall 44 when the jitter switch 40 is in motion.
Method And Apparatus For Determining Battery Characteristics
Joseph Patino - Pembroke Pines FL Henry A. Bogut - Coral Springs FL Jose M. Fernandez - Plantation FL
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
H01M 1046 H01M 1048
US Classification:
320 31
Abstract:
A battery charging system (200) comprises a battery pack (206) and charger (202). Battery pack 206 includes a thermistor (212) for determining the temperature of battery pack (206) and a zener diode (210)in parallel with the thermistor (212) for informing charger (202) of the current capacity of battery (206) or of another battery parameter. Charger (202) includes a transistor (220) and zener diode (214) for effectively switching between measuring thermistor (212) and zener diode (210) at charger input terminal (224). This effectively reduces the number of battery and charger contacts required to measure two battery parameters as compared to the prior art.
Henry A. Bogut - Coral Springs FL Joseph Patino - Plantation FL
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
H04R 2500 H04B 900
US Classification:
381172
Abstract:
A microphone assembly (134) includes a movable diaphragm (124) and a linear light gradient (130) which causes the movement of diaphragm (124) to be translated into a corresponding amplitude of light to be received at a photo-detector (116). Thereby providing for a fully optical microphone assembly which is immune to radio frequency interference and resistance losses.
Illuminated Switch And Keypad Assembly Having A Light Gradient And A Light Conductive Elastomeric Assembly
Joseph Patino - Plantation FL Henry A. Bogut - Coral Springs FL Pedro P. Hernandez - Sunrise FL
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
G01D 534
US Classification:
250229
Abstract:
A switch assembly (100) includes a key area (104) and a light reception section (114) for receiving light from input lightpipe (106) and providing some of the light to key area (104). Switch assembly (100) further includes an output lightpipe (122) and an optical conversion section (116) for modifying the light which is received by output lightpipe (122) when key area (104) is activated.
Battery And Method For Charging/Discharging The Battery
Joseph Patino - Plantation FL Henry A. Bogut - Coral Springs FL James L. Tidwell - Fort Lauderdale FL
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
H01M 1044
US Classification:
320 13
Abstract:
A battery charging system (200) includes a field-effect transistor (212) as a current discharge protection device in order to prevent current from flowing from battery (222) to charger (202) when charger (202) is not charging or discharging battery (222). The field-effect transistor (212) also protects battery (222) in the case that the battery contacts are inadvertently shorted. When charger (202) is charging battery (222), field-effect transistor (212) is turned on, providing for reduced voltage drop across the device due to its low on resistance, and also allows for charger (202) to charge and discharge (condition) battery (222).
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