Abstract: Techniques and apparatus are described for obtaining user input via a stylus configured to serve as an interface for providing user input into a computing device. The computing device may obtain rotation-related information indicative of rotational position or rotational movement of the stylus about a longitudinal axis of the stylus. The computing device may identify an operation in response to the rotation-related information, and perform the identified operation.

Abstract: Techniques and apparatus are described for obtaining user input via a stylus configured to serve as an interface for providing user input into a computing device. The computing device may obtain rotation-related information indicative of rotational position or rotational movement of the stylus about a longitudinal axis of the stylus. The computing device may identify an operation in response to the rotation-related information, and perform the identified operation.

Abstract: A mobile communication device equipped for proximity detection may include a transmitter that emits a periodic ultrasound signal, a receiver that detects the periodic ultrasound signal, an intra-frame filter that filters the detected periodic ultrasound signal based on a frame length of the detected periodic ultrasound signal, and a detector that determines a power level of the filtered periodic ultrasound signal to detect if the receiver is located in an undesirable location.

Abstract: Methods, systems, and devices are described for service discovery and connection establishment of a point-to-point (e.g., device-to-device) wireless communication. Wireless devices may initiate point-to-point communication utilizing ultrasonic signals. A user may initiate a scan for one device to detect, select, and establish a connection with another device, where the scan utilizes an ultrasonic signal. Once connected, the device may create a profile with one anther and/or wirelessly communicate with one another to, for example, exchange data.

Abstract: A control device executing a networking framework for controlling a network of smart objects registered with a framework may interact with only those smart objects in a room. A radio frequency signal broadcast on the networking framework for reception by smart objects registered with the networking framework may cause each of the plurality of smart objects to transmit an ultrasound signal that may include an identifier, such as a generic identifier of the smart object that was assigned during registration with the network framework. The control device may receive the ultrasound signals only from the smart objects in the room. The control device may rename each smart object from which ultrasound signals were received with new identifying information that may include a reference to the room. The device may then communicate with the smart objects via the networking framework using the new identifying information.

Abstract: A mobile communication device equipped for proximity detection may include a transmitter that emits a periodic ultrasound signal, a receiver that detects the periodic ultrasound signal, an intra-frame filter that filters the detected periodic ultrasound signal based on a frame length of the detected periodic ultrasound signal, and a detector that determines a power level of the filtered periodic ultrasound signal to detect if the receiver is located in an undesirable location.

Abstract: An apparatus that has a touchscreen, is configured to determine a response to a contact by a hand with a region of the touchscreen, and includes a first means for determining a location of a graphical projection of a digital pen onto the touchscreen, a second means for determining, via an ultrasonic wave, a first angle between a first line along an edge of the touchscreen and a second line along the graphical projection, a third means for determining a distance between the touchscreen and the digital pen, and a fourth means for determining, from the distance, the response to the contact by the hand with the region defined by the location and the first angle.

Abstract: Implementations of the technology described herein provide a method for detecting gesture commands using an ultrasonic pen system. The system has a pen and a user device. Detection of gesture commands is based on two-dimensional gestures relative to the screen of a user device, three-dimensional gestures relative to the screen of the user device, roll/rotation around a longitudinal axis of the pen body, and micro-twisting around the longitudinal axis of the pen body. The user device receives the gestures and translates them into commands such as UNDO and BACK.

Abstract: Systems and methods for saving power by a personal area network (PAN) coordinator and a device are described herein. A PAN coordinator is provided to form a wireless PAN with one or more of the devices. Further, the PAN coordinator and the devices enter sleep states to save power. The wireless PAN is available when the PAN coordinator enters an active state.

Abstract: An apparatus that has a touchscreen, is configured to determine a response to a contact by a hand with a region of the touchscreen, and includes a first means for determining a location of a graphical projection of a digital pen onto the touchscreen, a second means for determining, via an ultrasonic wave, a first angle between a first line along an edge of the touchscreen and a second line along the graphical projection, a third means for determining a distance between the touchscreen and the digital pen, and a fourth means for determining, from the distance, the response to the contact by the hand with the region defined by the location and the first angle.

Abstract: Apparatus and methods for tracking various assets. The apparatus includes a hybrid tracking device (HTD) for tracking an associated asset. The HTD includes a personal area network (PAN) transceiver to couple the HTD to a gateway, proxy or slave HTDs. The HTD may include a sensor to generate sensor information. Alternatively, the sensor information is generated remotely. The sensor information includes a determined location and/or information characteristic of an HTD or its environment. Sensor information from one sensor is used to represent HTDs separated by the PAN. The HTD may also include a wide area network (WAN) transceiver to communicate with an asset tracking server.

Abstract: A control device executing a networking framework for controlling a network of smart objects registered with a framework may interact with only those smart objects in a room. A radio frequency signal broadcast on the networking framework for reception by smart objects registered with the networking framework may cause each of the plurality of smart objects to transmit an ultrasound signal that may include an identifier, such as a generic identifier of the smart object that was assigned during registration with the network framework. The control device may receive the ultrasound signals only from the smart objects in the room. The control device may rename each smart object from which ultrasound signals were received with new identifying information that may include a reference to the room. The device may then communicate with the smart objects via the networking framework using the new identifying information.

Abstract: Implementations of the technology described herein provide a method for detecting gesture commands using an ultrasonic pen system. The system has a pen and a user device. Detection of gesture commands is based on two-dimensional gestures relative to the screen of a user device, three-dimensional gestures relative to the screen of the user device, roll/rotation around a longitudinal axis of the pen body, and micro-twisting around the longitudinal axis of the pen body. The user device receives the gestures and translates them into commands such as UNDO and BACK.

Abstract: Techniques and apparatus are described for obtaining user input via a stylus configured to serve as an interface for providing user input into a computing device. The computing device may obtain rotation-related information indicative of rotational position or rotational movement of the stylus about a longitudinal axis of the stylus. The computing device may identify an operation in response to the rotation-related information, and perform the identified operation.

Abstract: Techniques and apparatus are described for obtaining user input via a stylus configured to serve as an interface for providing user input into a computing device. The computing device may obtain rotation-related information indicative of rotational position or rotational movement of the stylus about a longitudinal axis of the stylus. The computing device may identify an operation in response to the rotation-related information, and perform the identified operation.

Abstract: Methods, systems, and devices are described for service discovery and connection establishment of a point-to-point (e.g., device-to-device) wireless communication. Wireless devices may initiate point-to-point communication utilizing ultrasonic signals. A user may initiate a scan for one device to detect, select, and establish a connection with another device, where the scan utilizes an ultrasonic signal. Once connected, the device may create a profile with one anther and/or wirelessly communicate with one another to, for example, exchange data.

Abstract: Apparatuses and methods to establish and share resources over a personal area network are provided. The units sharing similar functions or common applications are connected by a personal area network such as a low-power radio frequency network such as a ZIGBEE® network such that a selected one of the units sharing the functions or applications runs the application or function for each of the connected units. the similar function or common applications may include, for example, location determinations, data transmission, or the like. The selection of the one unit to run the application may be based on battery charge, processor capacity, or the like.

Abstract: Systems and methods for saving power by a personal area network (PAN) coordinator are described herein. A PAN coordinator is provided to form a wireless PAN with one or more devices. Further, the PAN coordinator enters a sleep state to save power. The wireless PAN is available when the PAN coordinator enters an active state.

Abstract: Systems and methods for saving power by a personal area network (PAN) coordinator and a device are described herein. A PAN coordinator is provided to form a wireless PAN with one or more of the devices. Further, the PAN coordinator and the devices enter sleep states to save power. The wireless PAN is available when the PAN coordinator enters an active state.

Abstract: Positions in a region serviced by a short range wireless network are established by defining a grid for the region. The grid is divided into a plurality of cells having a predetermined size. A plurality of static nodes can be placed in the cells. A network identifier that is associated with a standard protocol for the network is assigned to each of the static nodes. The identifier is assigned so as to identify the node and to represent a set of X, Y coordinates associated the cell where static node is located. The X,Y coordinate are assigned to the identifier without deviating from the standard protocol. The identifier is periodically broadcast from the static nodes. A cell of the grid within which a mobile node is located is estimated based on the identifier and an additional parameter received from one of the static nodes.