Abstract: Methods and systems are provided for delivering location-based services. Data defining a plurality of geofences and categories relating to points of interest is stored. A current location of a user device is monitored, and is compared with each of the plurality of geofences. Based on the comparison, the user device is determined to be within a geofence associated with one or more points of interest. One or more particular points of interest are identified from among those associated with the geofence based on a user-selected category. Links associated with the particular points of interest are output at an interface of the user device, wherein a selection of a particular link directs a web browser of the user device to a web resource associated with at least one of the particular points of interest.

Abstract: A method for providing location-based notifications on mobile devices is discussed. The method includes determining a first location of user's mobile device based on IP address, GPS signals, Wi-Fi signals, or cellular signals. The method includes accessing data, received by the mobile device responsive to communicating the first location to a server, indicating merchants in an area proximate to the first location. The method includes determining a second location of the mobile device based on other IP address, GPS signals, Wi-Fi signals, and/or cellular signals. The method includes communicating with the server to determine, based on the second location, that the mobile device has crossed into a geofence that includes at least one of the merchants. The method includes effecting, responsive to a determination that the mobile device crossed into the first geofence, a notification on the mobile device indicating at least one of the merchants at the geofence.

Abstract: A method and system for presenting location information on mobile devices is discussed. The method includes tracking, at a device associated with a user, mobile locations of mobile devices associated with the user, the mobile locations based on server data received from a location server. The method includes displaying an interactive map via a User Interface (UI) on a device display of the device, where the interactive map can indicate mobile locations with respect to names of physical locations. The method includes displaying a control element, on the UI, for receiving a user selection to control a first mobile device of the one or more mobile devices. The method also includes communicating, based on receiving the user selection, with the location server to remotely control the first mobile device.

Abstract: A buck voltage converter is disclosed. The buck voltage generator includes a controller configured to generate one or more pulse width modulation (PWM) signals, and a plurality of serially connected switches configured to receive the PWM signals and to generate an output voltage signal at an output terminal based on the received PWM signals. The output voltage signal has an average voltage corresponding with a duty cycle of the PWM signals, a first switch of the plurality of serially connected switches has a first breakdown voltage and a second switch of the plurality of serially connected switches has a second breakdown voltage, and the first breakdown voltage is less than the second breakdown voltage.

Abstract: Disclosed is a process for making nitrated styrenic fluoropolymers having various degrees of substitution. The nitrated styrenic fluoropolymer is capable of providing an exceptionally high birefringence ranging from 0.02 to 0.036. Further, the birefringence can be tuned by varying the degree of substitution (DS) of the nitro group on the styrenic ring to meet the need for optical compensation film applications. More particularly, the optical compensation films of the present invention are for use in an in-plane switching LCD (IPS-LCD) and OLED display.

Abstract: A method and system for presenting location information on mobile devices is discussed. The method includes tracking, at a device associated with a user, mobile locations of mobile devices associated with the user, the mobile locations based on server data received from a location server. The method includes displaying an interactive map via a User Interface (UI) on a device display of the device, where the interactive map can indicate mobile locations with respect to names of physical locations. The method includes displaying a control element, on the UI, for receiving a user selection to control a first mobile device of the one or more mobile devices. The method also includes communicating, based on receiving the user selection, with the location server to remotely control the first mobile device.

Abstract: A method and system for effecting changes on a mobile device. The method includes determining a physical location of a point of interest. The method includes automatically generating a geofence proximate to the point of interest based on the determined physical location. The method includes detecting when the mobile device enters the geofence. The method includes tracking a duration of time spent within the geofence by the mobile device. The method also includes effecting a change on the mobile device based on the duration of time spent within the geofence by the mobile device.

Abstract: A method and system for presenting location-based alerts on mobile devices is discussed. The method includes tracking user locations of users based on mobile device locations of mobile devices associated with the users. The mobile device locations can be determined based on location data transmissions from the mobile devices, with respective transmission lengths based on user preferences. The method includes presenting an interactive map interface for display on a first mobile device of a first user. The interactive map interface can display, based on the tracking, names of locations and the user locations. The interactive map interface can display pictures, each associated with a respective location or a user. In response to a determination, based on the tracking, that a second mobile device of a second user has arrived at a location defined by a geofence, a location notification can be pushed to the first mobile device.

Abstract: A method and system for presenting location information on mobile devices is discussed. The method includes tracking, at a mobile device associated with a user, mobile device locations of additional mobile devices associated with additional users. Each of the mobile device locations can be determined based on data indicating location data transmissions of respective additional mobile devices. The method includes providing an interactive map interface on a device display on the mobile device, the interactive map interface indicating, based on the tracking, location representations of locations and user representations of the additional users. The interactive map interface indicates a geofence generated using a location selected by the user. The method also includes displaying, responsive to a determination based on the tracking that one of the mobile devices has entered an area of the geofence, an alert on the device display.

Abstract: A method and system for effecting changes on a mobile device. The method includes determining a physical location of a point of interest. The method includes automatically generating a geofence proximate to the point of interest based on the determined physical location of the point of interest. The method includes detecting when the mobile device enters the geofence. The method includes tracking a current velocity of a mobile device. The method also includes effecting a change on the mobile device based on the current velocity of the mobile device within the geofence.

Abstract: A switched-mode power regulator circuit has four solid-state switches connected in series and a capacitor and an inductor that regulate power delivered to a load. The solid-state switches are operated such that a voltage at the load is regulated by repetitively (1) prefluxing the inductor then charging the capacitor causing an increased current to flow in the inductor and (2) prefluxing the inductor then discharging the capacitor causing increased current to flow in the inductor. The inductor prefluxing steps enable the circuit to provide increased output voltage and/or increased output current.

Abstract: A switched-mode power regulator circuit has four solid-state switches connected in series and a capacitor and an inductor that regulate power delivered to a load. The solid-state switches are operated such that a voltage at the load is regulated by repetitively (1) charging the capacitor causing an increase in current flow in the inductor followed by a decrease in current flow in the inductor and before the current flow in the inductor stops, (2) discharging the capacitor causing an increase in current flow in the inductor followed by a decrease in current flow in the inductor and before the current flow in the inductor stops, repeating (1).

Abstract: A buck voltage converter is disclosed. The buck voltage generator includes a controller configured to generate one or more pulse width modulation (PWM) signals, and a plurality of serially connected switches configured to receive the PWM signals and to generate an output voltage signal at an output terminal based on the received PWM signals. The output voltage signal has an average voltage corresponding with a duty cycle of the PWM signals, a first switch of the plurality of serially connected switches has a first breakdown voltage and a second switch of the plurality of serially connected switches has a second breakdown voltage, and the first breakdown voltage is less than the second breakdown voltage.

Abstract: A switched-mode power regulator circuit has four solid-state switches connected in series and a capacitor and an inductor that regulate power delivered to a load. The solid-state switches are operated such that a voltage at the load is regulated by repetitively (1) prefluxing the inductor then charging the capacitor causing an increased current to flow in the inductor and (2) prefluxing the inductor then discharging the capacitor causing increased current to flow in the inductor. The inductor prefluxing steps enable the circuit to provide increased output voltage and/or increased output current.

Abstract: Provided herein are methods and systems relating to location-based services such as providing a geofencing, outputting location-based information on a mobile device, varying transmissions to and from a mobile device, and providing location-based alerts. More specifically, a method can include receiving a task on a mobile device, associating the task with a location, generating a geofence around the location associated with the task, tracking a current location of a the mobile device, and generating an alert associated with the task when the current location is within the geofence.

Abstract: A switched-mode power regulator circuit has four solid-state switches connected in series and a capacitor and an inductor that regulate power delivered to a load. The solid-state switches are operated such that a voltage at the load is regulated by repetitively (1) charging the capacitor causing an increase in current flow in the inductor followed by a decrease in current flow in the inductor and before the current flow in the inductor stops, (2) discharging the capacitor causing an increase in current flow in the inductor followed by a decrease in current flow in the inductor and before the current flow in the inductor stops, repeating (1).

Abstract: A buck voltage converter is disclosed. The buck voltage generator includes a controller configured to generate one or more pulse width modulation (PWM) signals, and a plurality of serially connected switches configured to receive the PWM signals and to generate an output voltage signal at an output terminal based on the received PWM signals. The output voltage signal has an average voltage corresponding with a duty cycle of the PWM signals, a first switch of the plurality of serially connected switches has a first breakdown voltage and a second switch of the plurality of serially connected switches has a second breakdown voltage, and the first breakdown voltage is less than the second breakdown voltage.

Abstract: A switched-mode power regulator circuit has four solid-state switches connected in series and a capacitor and an inductor that regulate power delivered to a load. The solid-state switches are operated such that a voltage at the load is regulated by repetitively (1) charging the capacitor causing an increase in current flow in the inductor followed by a decrease in current flow in the inductor and before the current flow in the inductor stops, (2) discharging the capacitor causing an increase in current flow in the inductor followed by a decrease in current flow in the inductor and before the current flow in the inductor stops, repeating (1).

Abstract: A switched-mode power regulator circuit has four solid-state switches connected in series and a capacitor and an inductor that regulate power delivered to a load. The solid-state switches are operated such that a voltage at the load is regulated by repetitively (1) charging the capacitor causing an increase in current flow in the inductor followed by a decrease in current flow in the inductor and before the current flow in the inductor stops, (2) discharging the capacitor causing an increase in current flow in the inductor followed by a decrease in current flow in the inductor and before the current flow in the inductor stops, repeating (1).

Abstract: Disclosed is a multilayer optical compensation film comprising a first layer comprising a positive C-plate material and a second layer comprising a polyimide, as well as polymer compositions and resins and solutions containing said polymer compositions. The optical compensation film has a reversed wavelength dispersion that is capable of providing an achromatic (or broadband) retardation compensation. The optical film can be used in optical devices such as liquid crystal displays (LCD) or organic light emitting diode (OLED) displays.