Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Application No. | Application Title | Issue Date |
| 20110241894 | LOW VOLTAGE WARNING CIRCUIT A low voltage warning circuit includes an input terminal configured to receive a supply voltage, a reference voltage connected to the input terminal for providing a reference voltage, a transistor connected to the reference voltage circuit and the input terminal, and a ... | 10/06/2011 |
| 20110241893 | VOLTAGE DROP CANCELLATION An apparatus, system, and method are disclosed for bypassing a voltage drop. A protection module allows electric current to flow from an electric power storage device to a load. The protection module prevents electric current from flowing to the electric power storage d... | 10/06/2011 |
| 20110210860 | USB Port Connectible Device Locater Alarm control circuitry is provided for a Universal Serial Bus (USB) port connectible device including an alarm generator emitting an audible alarm when powered by internal voltage from a capacitor charged by external voltage from a computer during connection of the dev... | 09/01/2011 |
| 20110025518 | UNDER-VOLTAGE WARNING CIRCUIT An under-voltage warning circuit includes a Zener diode, a transistor, an annunciator, and a thyristor. When the power source is within a certain range, the annunciator does not work. When the voltage level of the power source V_in is lower than the predetermined value,... | 02/03/2011 |
| 20100219689 | LIFTING MAGNET AND METHOD FOR EMERGENCY POWER SUPPLY The invention relates to a lifting magnet (11), comprising an emergency power source (121) effective during a mains power failure, said emergency power source having a plurality of high-performance capacitors (12), preferably double-layer capacitors... | 09/02/2010 |
| 20100052930 | ACTIVITY PATTERN BASED BATTERY CHARGING ALERTS FOR MOBILE DEVICES A method for providing activity pattern based battery charging alerts for mobile devices, the method includes: monitoring usage patterns of a mobile device; determining periods of activity and inactivity for the mobile device's usage; creating an activity log detailing ... | 03/04/2010 |
| 20090039070 | SEMICONDUCTOR EQUIPMENT AND BREAKDOWN PRECAUTIONARY SYSTEM AND METHOD THEREOF A breakdown precautionary system of a semiconductor equipment includes a semiconductor equipment with a coil heater, at least a voltage/current detector, and an alarm system. The voltage/current detector detects the voltage and current of the coil heater at the same tim... | 02/12/2009 |
| 20090009352 | System for testing NAC operability using backup power A monitoring system for a NAC (Notification Appliance Circuit) is provided. The monitoring system includes a system controller, and a NAC comprised of notification appliances that may be in a series. The NAC and its appliances may be operatively coupled to the system co... | 01/08/2009 |
| 20070030158 | Audible power loss alarm An audible power-loss alarm indicates when electrical power has been cut off to an appliance. The external components comprise a plastic housing, an alarm speaker, a battery compartment, a charging indicator light, plug-in outlets, plug-in blades, and an on-off switch. ... | 02/08/2007 |
| 20070024460 | ELECTRICAL APPARATUS WITH VOLTAGE DROP INDICATOR An electrical apparatus has an indicator for indicating a voltage drop across an electrical system. The electrical apparatus includes a core, a sense lead, and an indicator. The core transmits electrical current from a source to a load. The sense lead electrically conne... | 02/01/2007 |
| 20060226999 | Wireless input device with low voltage mandatory alert function The present invention relates to a wireless input device with a low voltage mandatory alert function, including: a battery for supplying power for the wireless input device; a microcontroller for handling the input signals of the wireless input device. The present inven... | 10/12/2006 |
