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| Number | Title | Issue Date |
| 7944710 | Termination apparatus and method for planar components on printed circuit boards The disclosure involves the efficient termination of a winding PCB of a planar inductive component to a main PCB, using relatively little space and providing a low-resistance connection. The disclosed methods are especially suitable for planar structures where sever... | 05/17/2011 |
| 7580030 | Sensor for capacitive touch pad pointing device The topology and the shape of sensing electrodes (4, 31) on the Capacity Touch Pad Sensor that allow sensing of small targets are disclosed. Sensor construction utilizes common PCB manufacture technique. ... | 08/25/2009 |
| 7519005 | Single-wire communication bus for miniature low-power systems A single-wire serial communications bus has a master device and one or more slave devices. The slave devices are addressed according to a predetermined addressing scheme in an address space. The master device starts a transmission with a number of line state changes... | 04/14/2009 |
| 7075523 | Data acquisition from capacitive touch pad A Circuit (in FIG. 1) and an Algorithm for Data Acquisition from Capacitive Touch Pad Sensor employs charge transfer to sense capacitance. The circuit has high degree of noise rejection from both system and externally generated noises; it is resistant to the ... | 07/11/2006 |
| 6816022 | Oscillator system and method for starting and stopping an oscillator An improved oscillator system has a control logic block which has an input from an external device to which clock is being provided. The input controls a counter which counts cycles from the oscillator. If some predetermined number of cycles has passed in the absenc... | 11/09/2004 |
| 6668180 | Signaling method and apparatus with a host and human input device In the exemplary system, a "software" handshake is employed to signal from the keyboard when it is desired to "wake up" the host. After the handshake is completed, a key scan code is communicated to the host. Thereafter the host may revert to "sleep" mode... | 12/23/2003 |
| 6518725 | Charge balancing system The problem of battery failure due to failure of one cell in a rechargeable battery, and the related problem of inefficient use of a battery over its dynamic range due to differences between the performance of cells in a battery, are addresses by providin... | 02/11/2003 |
| 6512471 | Intentionally non-monotonic digital-to-analog converter A digital-to-analog converter comprises capacitor stack (61, 62), the common point of which is the output of the converter. Digitally controlled switches (66-70), which may be discrete outputs from a microcontroller, selectively apply first or second pote... | 01/28/2003 |
| 6511764 | Voltaic pile with charge equalizing system A voltaic pile has first and second terminals by which it is charged and discharged. The pile comprises a plurality of modules (3), each having respective third and fourth terminals with a plurality of voltaic cells connected in series therebetween. The m... | 01/28/2003 |
| 6501342 | Power-conserving external clock for use with a clock-dependent integrated circuit The problem of undesired power consumption in an oscillator during "stop" periods of a device is addressed by providing the oscillator in apparatus external to the device, the apparatus including a current sensor sensing current in a line between the appa... | 12/31/2002 |
| 6486871 | Pointing device with Z-axis functionality and reduced component count Apparatus and method are disclosed for receiving human input by means of a pointing device, typically a strain gauge. Three dimensions of input are received from a resistor bridge by means of four contact points to the strain gauge. A sequence of excitati... | 11/26/2002 |
| 6429850 | Pointing device with reduced component count A signal processing system for a strain-gauge pointing device has a reduced parts count and permits the use of relatively inexpensive low-tolerance components. The system can process signals from two or three or more strain gauges, permitting additional i... | 08/06/2002 |
| 6239644 | Clock stretcher and level shifter with small component count and low power consumption A clock stretching circuit (110) mites between a synchronous bus (112) and a microcontroller (124) which is asleep most of the time to save electrical power. The bus is of a type in which a slow bus device can cause the sender of data to "hold" the data u... | 05/29/2001 |
| 6175359 | Pointing device with reduced component count A signal processing system for a strain-gauge pointing device has a reduced parts count and permits the use of relatively inexpensive low-tolerance components. The system can process signals from two or three or more strain gauges, permitting additional i... | 01/16/2001 |
| 5874938 | Pointing device with reduced component count A signal processing system for a strain-gauge pointing device has a reduced parts count and permits the use of relatively inexpensive low-tolerance components. The system can process signals from two or three or more strain gauges, permitting additional i... | 02/23/1999 |
