Abstract: Identifying on-line advertising conversions includes identifying, at a computer server system, a plurality of reports from one or more computing devices, wherein each of the reports indicates a clock skew between one of the computing devices and a clock server system; using the clock skews to determine that two or more of the reports are likely from a common computing device; determining that the two or more of the reports are common, in that they correspond to display of an advertisement on the common computing device and to purchase of on-line content with the common computing device; and indicating that a purchase conversion occurred based on determining that the two or more of the reports are common.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for recognizing speech input. In one aspect, a method includes receiving a user input and a grammar including annotations, the user input comprising audio data and the annotations providing syntax and semantics to the grammar, retrieving third-party statistical speech recognition information, the statistical speech recognition information being transmitted over a network, generating a statistical language model (SLM) based on the grammar and the statistical speech recognition information, the SLM preserving semantics of the grammar, processing the user input using the SLM to generate one or more results, comparing the one or more results to candidates provided in the grammar, identifying a particular candidate of the grammar based on the comparing, and providing the particular candidate for input to an application executed on a computing device.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for suggesting search queries based on location. One of the methods includes determining a current location of the user. A selection of the user's past search queries is generated, where each past search query in the selection is associated with a query location related to the query. A respective score is assigned to each past search query in the selection. The score for each query is based at least in part on the proximity of the current location to the query location of the query. One or more of the past search queries in the selection are provided for presentation to the user on the user's electronic device based on the assigned scores.

Abstract: In general, the subject matter described in this specification can be embodied in methods, systems, and program products for receiving user input that defines a search query, and providing the search query to a server system. Information that a search engine system determined was responsive to the search query is received at a computing device. The computing device is identified as in a first state, and a first output mode for audibly outputting at least a portion of the information is selected. The first output mode is selected from a collection of the first output mode and a second output mode. The second output mode is selected in response to the computing device being in a second state and is for visually outputting at least the portion of the information and not audibly outputting the at least portion of the information. At least the portion of information is audibly output.

Abstract: In general, the subject matter described in this specification can be embodied in methods, systems, and program products for receiving user input that defines a search query, and providing the search query to a server system. Information that a search engine system determined was responsive to the search query is received at a computing device. The computing device is identified as in a first state, and a first output mode for audibly outputting at least a portion of the information is selected. The first output mode is selected from a collection of the first output mode and a second output mode. The second output mode is selected in response to the computing device being in a second state and is for visually outputting at least the portion of the information and not audibly outputting the at least portion of the information. At least the portion of information is audibly output.

Abstract: Methods, systems, and apparatus, including computer programs encoded on one or more computer storage devices, for context sensitive point of interest retrieval. In one aspect, a method includes receiving a current location of a user's electronic device and retrieving multiple points of interest within a predetermined distance to the current location. Each point of interest is ranked based on the point of interest's proximity to the current location and one or more time-related attributes associated with the point of interest. Data identifying one or more of the points of interest is provided to the electronic device for presentation to the user on a display of the electronic device based on the ranking.

Abstract: A driver apparatus is provided for controlling a light source array comprising at least first and second light sources, the light source array used for illuminating a scan region on a target object, wherein light reflected from said target object is captured by a detector. The driver apparatus comprises a single integrated circuit comprising processing means for processing image data received from the detector, a switching array comprising at least first and second switches for switching the respective first and second light sources, and a current source for controlling the flow of current through the light sources. In this way the LED switching circuitry that controls an LED array is 15 placed on the same integrated circuit (i.e. monolithic circuit) as the analogue processing circuitry that processes the image data, with the current source controlling the flow of current through the LEDs in the LED array.

Abstract: A light source is protected by selectively coupling a shunt path in parallel with the light source, such that current is diverted away from the light source and through the shunt path. A detection circuit detects the current flowing in the shunt path when the shunt path is connected in parallel with the light source. A comparator determines whether the current flowing in the shunt path exceeds a predetermined threshold and, if so, prevents or limits the flow of current when the shunt path is disconnected from being in parallel with the light source. In this way, a current detector is provided for monitoring the flow of current in a shunt path, the current detector being configured to disable or limit the flow of current through a light source when a predetermined threshold is reached.

Abstract: A light source is protected by selectively coupling a shunt path in parallel with the light source, such that current is diverted away from the light source and through the shunt path. A detection circuit detects the current flowing in the shunt path when the shunt path is connected in parallel with the light source. A comparator determines whether the current flowing in the shunt path exceeds a predetermined threshold and, if so, prevents or limits the flow of current when the shunt path is disconnected from being in parallel with the light source. In this way, a current detector is provided for monitoring the flow of current in a shunt path, the current detector being configured to disable or limit the flow of current through a light source when a predetermined threshold is reached.