ams has released a new family of intelligent sensors which integrate gesture detection, colour sensing, ambient light sensing and other optical sensing functions, making it ideal for gesture control and display management in consumer electronics devices.
The TMG3992 and TMG3993 use advanced gesture-recognition software developed by ams to detect a wide range of gestures. The gesture detection system uses four directional photo-diodes to sense reflected IR energy, converting the data into information about the velocity and direction of the user’s hand, and its distance from the device.
The TMG399x chips support a wide range of gesture-detection requirements, from simple North-South-East-West gestures to more complex gestures, including simulated button pushing and taps. Power consumption and noise are minimized with adjustable IR LED timing and configurable gesture algorithms.
As sensors proliferate in mobile devices, support for sensor hub architectures has become an important requirement. The TMG399x gesture software supports optimised Android drivers. In addition, a fully qualified gesture library is available for the Qualcomm ADSP sensor core on the Snapdragon 6xx and 8xx processor families, providing for four-direction gesture recognition, plus ambient light sensing, proximity sensing and other standard features.
The TMG399x product family integrates colour sensors from ams. Accurate colour and light intensity measurements are critical parameters for display management in portable devices operating under a wide range of light sources, including fluorescent, incandescent and sunlight.
The devices’ proximity-detection function is optimized for the detection of objects within a range of 100mm. It may be used to simplify a product’s user interface, for instance by enabling intelligent on/off control of a touchscreen.
The TMG399x devices also provide Mobeam bar code emulation, enhancing the e-commerce capabilities of any mobile device by enabling smartphones to transmit bar codes to any one dimensional scanner at point-of-sale terminals.
- Portable consumer electronics devices
- UV and IR blocking filters
- Ambient light rejection
- Cross-talk cancellation
- Dual 8-bit data converters
- 32-dataset FIFO
- IRBeam hardware support
- I2C interface