Abstract: A method of operating a touch-sensing surface may include determining a presence of at least one conductive object at the touch-sensing surface by performing a search measurement of a first set of sensor elements of the touch-sensing surface, and in response to determining the presence of the at least one conductive object, determining a location of the at least one conductive object by performing a tracking measurement of a second set of sensor elements of the touch-sensing surface.

Abstract: A method of operating a touch-sensing surface may include performing a first scan of a first set of electrodes of a touch-sensing surface, determining a presence of at least one conductive object proximate to the touch-sensing surface, in response to determining the presence of the at least one conductive object, performing a second scan of a second set of electrodes of the touch-sensing surface, and repeating the performing the second scan until the at least one conductive object is no longer proximate to the touch-sensing surface.

Abstract: A method of operating a touch-sensing surface may include performing a first scan of a first set of electrodes of a touch-sensing surface, determining a presence of at least one conductive object proximate to the touch-sensing surface, in response to determining the presence of the at least one conductive object, performing a second scan of a second set of electrodes of the touch-sensing surface, and repeating the performing the second scan until the at least one conductive object is no longer proximate to the touch-sensing surface.

Abstract: A method of operating a touch-sensing surface may include determining a presence of at least one conductive object at the touch-sensing surface by performing a search measurement of a first set of sensor elements of the touch-sensing surface, and in response to determining the presence of the at least one conductive object, determining a location of the at least one conductive object by performing a tracking measurement of a second set of sensor elements of the touch-sensing surface.

Abstract: A multi-node time division multiplexing (TDM) system is disclosed. The improved method and apparatus utilizes an asynchronous synchronization packet (ASP) to synchronize the timing in all the nodes of the system. In some embodiments, the ASP also maps the time slots in a data frame to particular nodes. The ASP is sent at the start of each data frame to all the nodes in the system and each node synchronizes itself to the time of receipt of the ASP, thus establishing frame-based timing for all the nodes. Additionally, the ASP can contain a table that maps the data frame time slots to the nodes in the system.

Abstract: One embodiment of the present invention enables a low performance and low cost microprocessor (or microcontroller) to perform binary demodulation of analog communication signals. Within the present embodiment, three techniques may be utilized to enable this functionality. For example, an analog-to-digital converter sampling rate technique is utilized with an incoming modulated analog communication signal. This sampling rate technique is able to eliminate the need for any reference sine and/or cosine waves during the demodulation process. Next, utilizing sample values produced by the sampling rate technique, a continuous-time sum of products calculation is performed by a central processing unit (CPU) of the microprocessor or microcontroller. The results of the continuous-time calculation then enables the present embodiment to demodulate the binary modulated analog signal.

Abstract: A cache between a USB and a flash memory: The cache utilizes multiple banks of Magnetic Random Access Memory (MRAM). The size of each bank in the MRAM corresponds to the size of a sector in the flash memory. Initially, the data received from the host is stored in one of the MRAM banks. At any particular time, data destined for only one sector of the flash memory is written in each particular MRAM bank. When an MRAM bank contains as much data as the capacity of a sector, the data stored in the bank is written to the corresponding sector in the flash memory. The MRAM has a relatively high write speed and thus data can be written at the speed data is transmitted on the USB bus. Furthermore, the MRAM is a non-volatile storage device, hence, if the device is disconnected from the USB port on the host (or if power is otherwise removed), no data is lost.