Beat Zenerino - Nashville TN, US Cameron E. Boone - Nashville TN, US Lester V. Marks - Raleigh NC, US Mark David Rowan - Franklin TN, US David M. Reynolds - Mt. Juliet TN, US
Assignee:
Griffin Technology, Inc. - Nashville TN
International Classification:
G06F 1/26 G06F 13/00
US Classification:
713300, 713340, 710306
Abstract:
A USB hub utilizes an external power supply connection and rechargeable battery to provide a fully functional USB hub that provides portable backup power for USB devices. The hub includes a housing with a host connector that is adapted to be coupled to a host. Device connectors are also positioned on the housing that are adapted to be coupled to electronic devices. A hub circuit enables USB communications between the devices and host connected to the hub. The rechargeable battery is selectively charged from the host or external power supply connection. A microcontroller controls the hub circuitry such that power is provided to the hub circuit and the device connectors from an external power source or host if available or the rechargeable battery if they are not.
Paul Griffin - Nashville TN, US Cameron Boone - Nashville TN, US
Assignee:
Griffin Technology, Inc. - Nashville TN
International Classification:
G06F 3/033
US Classification:
345179, 178 1903
Abstract:
A pen or stylus for use with a finger activated computer touchpad uses capacitively coupled voltage signals to simulate the capacitive effect of a finger on the touchpad. In addition, the pen has buttons that can be utilized to capacitively couple control signals to the touchpad that are interpreted by application software as specific user-defined inputs. The pen has a conductive tip that is placed into contact with the touchpad. By biasing the touchpad electrodes with a properly timed voltage signal, the pen alters the charging time of the electrodes in the touchpad. This alteration in charging time is interpreted by the touchpad as a change in capacitance due to the presence of a user's finger. Thus, the pen can be used with touchpads that were designed to only detect finger movements.
- Nashville TN, US David Bowker - Nashville TN, US Cameron E. Boone - Nashville TN, US Robert Nieman - Brentwood TN, US
Assignee:
Griffin Technology, Inc. - Nashville TN
International Classification:
H04W 64/00 H02J 7/34
Abstract:
A mesh network includes an array of stationary sensing devices. Each of the devices is controlled by a microprocessor control unit and has a sensor capable of detecting a non-stationary object that enters a detection range of the sensor. A wireless communication component allows the sensing devices to wirelessly communicate with any other sensing devices or mobile phones within communication range. The devices include a power harvesting component that collects energy from the environment and a power capacitor that stores the collected energy. The devices automatically communicate data concerning any detected non-stationary objects to a central server.