Handheld imaging device with system-on-chip microcontroller incorporating on shared wafer image processor and image sensor
First Claim
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1. A portable imaging device, comprising:
- an image sensor configured for generating signals carrying data related to an image sensed by the image sensor;
a micro-controller provided on a wafer substrate; and
a memory external to the micro-controller and configured for storing the data related to the image sensed by the image sensor;
wherein the micro-controller comprises;
a plurality of processing units interconnected in parallel by a crossbar switch;
an image sensor interface for effecting data communication between the image sensor and the plurality of processing units; and
a data cache connected to the plurality of processing units via a plurality of buses;
wherein the crossbar switch is separate from the plurality of buses,wherein each of the plurality of processing units includes two I/O address generators, and each I/O address generator is connected to a respective one of the plurality of buses, andwherein the two I/O address generators of each of the plurality of processing units are configured for controlling a transfer of the data related to the image sensed by the image sensor from the image sensor interface to and from the memory.
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Abstract
A handheld imaging device includes an image sensor for sensing an image; and a micro-controller provided on a wafer substrate, the micro-controller integrating on the same wafer substrate as a system-on-chip device, a plurality of processing units and an image sensor interface for effecting data communication between the image sensor the plurality of processing units.
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Citations
15 Claims
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1. A portable imaging device, comprising:
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an image sensor configured for generating signals carrying data related to an image sensed by the image sensor; a micro-controller provided on a wafer substrate; and a memory external to the micro-controller and configured for storing the data related to the image sensed by the image sensor; wherein the micro-controller comprises; a plurality of processing units interconnected in parallel by a crossbar switch; an image sensor interface for effecting data communication between the image sensor and the plurality of processing units; and a data cache connected to the plurality of processing units via a plurality of buses; wherein the crossbar switch is separate from the plurality of buses, wherein each of the plurality of processing units includes two I/O address generators, and each I/O address generator is connected to a respective one of the plurality of buses, and wherein the two I/O address generators of each of the plurality of processing units are configured for controlling a transfer of the data related to the image sensed by the image sensor from the image sensor interface to and from the memory. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification