Strip away the autonomy hype and look at what is actually shipping in cars, and you find the camera doing most of the work. Lane-keeping, traffic-sign recognition, automatic high beams, forward-collision warning, pedestrian detection — the everyday ADAS features people actually have are, overwhelmingly, camera-driven. A 2022 grant from HL Klemove is a clean reminder of how central the humble forward camera remains.
The record: on November 8, 2022, HL Klemove Corp. was granted US11491974B2, “Camera system for intelligent driver assistance system, and driver assistance system and method.” The CPC classes show the camera wired into action: B60W 30/09 and 30/0956 (collision avoidance), B60W 10/18 and 10/20 (braking and steering control), and vision class G06V 20/588 (lane-marking detection), plus G08G 1/166 (pedestrian-related). The camera is not just watching; it is driving the brakes and steering.
Here is why the camera is the workhorse. It is the only common sensor that reads semantic detail — it can tell a stop sign from a speed-limit sign, a pedestrian from a lamppost, a solid lane line from a dashed one. Radar gives you range and speed but no meaning; lidar gives you geometry but is expensive. For the recognition tasks that most ADAS features depend on, the camera is both the cheapest and the most capable sensor.
Notice that this is a full system patent, not just an imager. The grant covers the camera and the driver-assistance system and method around it. That pairing is the point: the camera's value is realized only when its output is connected to the vehicle's braking and steering. A 2022 camera-ADAS grant is really a grant on the loop from seeing to acting.
The architectural read: a camera-centric ADAS is the mainstream, cost-conscious approach — the same family as the camera-plus-radar fusion that dominates production. It is not the maximalist lidar stack of the robotaxi developers; it is the pragmatic system that goes into ordinary cars at scale. The patent record from tier-1 suppliers like HL Klemove tracks this mainstream, which is where most drivers actually meet driver assistance.
The skeptic's caveat: a camera-based ADAS is a Level-2 assistance system, not autonomy, and a granted method is not a safety guarantee. Cameras struggle in glare, fog, and darkness — which is exactly why production systems often add radar. But the honest center of gravity in shipping ADAS is the camera, and a 2022 grant from a major supplier shows it doing the unglamorous, everyday work of seeing the road so the car can react.