Abstract: A battery-operated handheld device including a housing to enclose electrical components and a battery holder. The battery holder including a first battery slot and a second battery slot. The first and second battery slots being sized to hold batteries of different battery sizes. The second battery slot being alongside the first battery slot. The electrical components of the handheld device may be powered by either the first battery inserted into the first battery slot or the second battery inserted into the second battery slot. The battery holder may serve as an adjustable weight distribution mechanism to shift a centre of gravity of the handheld device between a first predetermined centre of gravity associated with the first battery inserted into the first battery slot and a second predetermined centre of gravity associated with the second battery inserted into the second battery slot.

Abstract: An illumination panel device includes a housing, a first circuit board, a second circuit board, and a light guide. The housing includes a frame coupled to a rear cover. The frame defines an opening. The first circuit board includes a plurality of white light emitters. The first circuit board is coupled to the frame such that the plurality of white light emitters are arranged around the opening. The second circuit board includes a plurality of multi-color light emitters. The second circuit board is coupled to the frame such that the plurality of multi-color light emitters are arranged around the opening. The light guide has opposite front and back surfaces. The light guide is arranged in the opening with the back surface facing the rear cover. The light guide is optically coupled to at least the plurality of white light emitters through peripheral edges of the light guide.

Abstract: A battery-operated handheld device including a housing to enclose electrical components and a battery holder. The battery holder including a first battery slot and a second battery slot. The first and second battery slots being sized to hold batteries of different battery sizes. The second battery slot being alongside the first battery slot. The electrical components of the handheld device may be powered by either the first battery inserted into the first battery slot or the second battery inserted into the second battery slot. The battery holder may serve as an adjustable weight distribution mechanism to shift a centre of gravity of the handheld device between a first predetermined centre of gravity associated with the first battery inserted into the first battery slot and a second predetermined centre of gravity associated with the second battery inserted into the second battery slot.

Abstract: An input device including a switch connector having a plurality of electrical terminals fixedly mounted to a circuit board. The input device including a switch assembly magnetically coupled to the switch connector in a removable manner. The switch assembly including a switch adapter having a plurality of contact elements in engagement with the plurality of electrical terminals of the switch connector, and a switch fitted to the switch adapter with a plurality of leads of the switch electrically connected to the plurality of contact elements of the switch adapter. The switch adapter being between the switch connector and the switch. The input device including a magnetic catch arrangement having a first catch unit at the circuit board and a second catch unit at the switch adapter which coact with each other to magnetically couple the switch assembly to the switch connector. A corresponding switch assembly thereof and a computer mouse.

Abstract: An input device (900) may include a rotatable member (952), a virtual scroll controller (912) and a host interface block (906). The virtual scroll controller (912) may be configured to select a virtual scroll state from a plurality of virtual scroll states based on a rotational velocity of the rotatable member (952). Each virtual scroll state may be associated with a respective output function. The virtual scroll controller (912) may be further configured to compute an output velocity according to the output function associated with the selected virtual scroll state. The virtual scroll controller (912) may be further configured to generate a virtual position count (928) based on the computed output velocity. The host interface block (906) may be configured to send the generated virtual position count (928) to a computing device connected to the input device (900).

Abstract: A method, a computer readable medium, and an apparatus for providing haptic feedback through a plurality of haptic devices are provided. The apparatus may receive a multi-channel audio stream. The apparatus may split the multi-channel audio stream into a plurality of audio channels. For each haptic signal of a plurality of haptic signals, the apparatus may generate the haptic signal based on one or more audio channels of the plurality of audio channels. For each haptic signal of the plurality of haptic signals, the apparatus may transmit the haptic signal to a corresponding haptic device of the plurality of haptic devices to produce the haptic feedback.

Abstract: A method, a computer readable medium, and an apparatus for providing haptic feedback through a plurality of haptic devices are provided. The apparatus may receive a multi-channel audio stream. The apparatus may split the multi-channel audio stream into a plurality of audio channels. For each haptic signal of a plurality of haptic signals, the apparatus may generate the haptic signal based on one or more audio channels of the plurality of audio channels. For each haptic signal of the plurality of haptic signals, the apparatus may transmit the haptic signal to a corresponding haptic device of the plurality of haptic devices to produce the haptic feedback.

Abstract: A method, a computer readable medium, and an apparatus for providing haptic feedback through a plurality of haptic devices are provided. The apparatus may receive a multi-channel audio stream. The apparatus may split the multi-channel audio stream into a plurality of audio channels. For each haptic signal of a plurality of haptic signals, the apparatus may generate the haptic signal based on one or more audio channels of the plurality of audio channels. For each haptic signal of the plurality of haptic signals, the apparatus may transmit the haptic signal to a corresponding haptic device of the plurality of haptic devices to produce the haptic feedback.

Abstract: Creating a disc spin speed profile allows the player to store this disc spin speed profile and control disc spin speed based on this disc spin speed profile, simplifying the disc spin speed adjustment. Instead of using a Constant Linear Velocity profile matched to the highest data rate prescribed by the standard, the playback device can establish its own disc spin speed profile that is adapted to the data rate requirements as they vary across the record carrier. Starting the disc spin speed profile with a Constant Angular Velocity part, followed by a Constant Linear Velocity part reduces the disc spin speed at zones at the innermost of the disc, reducing noise and energy consumption.

Abstract: A method and apparatus for adjusting operating conditions when shifting from a first layer to a second layer during recording of a dual layer DVD. During calibration of the first layer before recording, parameters for differential laser power and beta target between the two layers are obtained from information fields of the disk. The distance between the layers is measured. When shifting from layer one to layer two, the laser power and beta target for layer two are obtained by using the current values immediately before shifting with addition of the differential obtained during calibration. The focus signal is adjusted by adding the difference compensated for temperature deviations. The tilt signal is unamended. In this way, the shift between layer one and layer two can be performed fastly without separate calibration.

Abstract: A device for recording and/or reproducing an optical record carrier (1), comprises an optical system for projecting a first, a second and a third optical beam at a first (11), a second (12) and a third spot (13) at the record carrier (1). The device further comprises detection elements primary position signals (D5, C, D1) which is indicative for an amount of radiation reflected by the record carrier at said thoses spots (11). The device further comprises signal processing means (34.1, . . . 34.4; 35.1, . . . 35.4) for generating a plurality of secondary position signals (S1, S2, S3, S4) in response to the primary position signals (D5, C, D1). A selection element (36) selects one of the position signals (S1, S2, D1, S3, S4) as an output signal (WRE) in response to a selection signal (SEL). The selection signal (SEL) is derived from the output signal (WRE) of the selection element (36).

Abstract: A device for recording and/or reproducing an optical record carrier (1), comprises an optical system for projecting a first, a second and a third optical beam at a first (11), a second (12) and a third spot (13) at the record carrier (1). The device further comprises detection elements primary position signals (D5, C, D1) which is indicative for an amount of radiation reflected by the record carrier at said thoses spots (11). The device further comprises signal processing means (34.1, . . . 34.4; 35.1, . . . 35.4) for generating a plurality of secondary position signals (S1, S2, S3, S4) in response to the primary position signals (D5, C, D1). A selection element (36) selects one of the position signals (S1, S2, D1, S3, S4) as an output signal (WRE) in response to a selection signal (SEL). The selection signal (SEL) is derived from the output signal (WRE) of the selection element (36).