Sony Patents a Way to Split High-Speed Video Processing Across Two Devices
Professional cameras that shoot at extreme frame rates generate more data than their internal chips can fully handle. Sony's new patent describes a smarter way to divide that work between the camera body and a separate processing box.
How Sony's camera offloads its heaviest video work
Every time a camera records ultra-slow-motion video, it captures an enormous number of frames per second, and every one of those frames has to be processed almost instantly. The chip inside the camera has to clean up the image, correct colors, and compress the footage, all at once, which gets very difficult at the highest speeds.
Sony's patent describes a system where the camera handles as much as it can, then hands off the rest of the work to a separate device connected to it. Think of it like a busy chef who preps the ingredients but passes the finished plating to a colleague. The camera does what its chip can manage, and the external box handles the tasks that would otherwise overwhelm it.
The camera's internal software is smart enough to change its own workflow depending on what speed you're shooting at. At extreme frame rates, it automatically reorganizes which steps it handles itself and which ones it sends out.
… a control unit that changes a processing process of the signal processing unit in a case of performing imaging at the m-fold speed with the specific resolution.
Translation: The system adjusts how it handles data when you switch to high speed recording.
How the camera decides what to keep and what to offload
The patent describes a camera with an image sensor capable of outputting video at what the document calls "m-fold speed" at a given resolution, where m is a high frame-rate multiplier (think many times the standard 24 or 30 frames per second).
The camera's internal signal processing unit can only fully handle video up to "n-fold speed," which is a lower multiplier. So when you push the camera to its maximum frame rate, the internal chip hits its ceiling.
To get around that limit, the system does two things:
- The camera's control unit automatically changes the internal processing pipeline (the sequence of steps used to clean and compress video) when shooting at maximum speed, skipping or simplifying some steps internally.
- A transmission unit sends the partially processed video to an external device, called the imaging signal processing device, which has its own chip capable of finishing the steps the camera's internal processor couldn't complete.
The external device is specifically designed to handle the heavier processing load that corresponds to the camera's top speed. The two devices together complete what one device alone cannot.
The imaging signal processing device includes a signal processing unit capable of executing the part of processing in the imaging device corresponding to a video signal of m-fold speed with the specific resolution.
Translation: The external device handles the heavy lifting required for fast video frames.
What this means for professional high-speed cameras
For professional cinematographers and researchers who use high-speed cameras, the bottleneck has always been how much processing the camera body itself can do. By officially splitting that responsibility across two connected devices, Sony could allow camera hardware to reach higher frame rates than would otherwise be possible with a single internal chip, without waiting for chip technology to catch up.
Sony's steady investment in imaging sensor and signal processing patents suggests this is part of a longer effort to push the ceiling on what cameras can capture. For everyday consumers, the immediate payoff is probably years away, but for broadcast, sports, and scientific imaging, a camera that can legally offload its most demanding work to external hardware is a practical engineering solution to a real bottleneck.
This is the 38th Sony filing in our chip coverage we've tracked since May, adding to work like one catching timing errors and one counting light pulses.
Sony is describing a system that requires two separate pieces of hardware to exist at the same time: a camera body and a purpose-built external processor that handles the work the camera cannot finish on its own. That means two devices to design, manufacture, and sell before anyone can use this.
The document sketches the architecture but leaves out the details that would make it a real product, like how the two units talk to each other and how fast that handoff needs to be. That gap puts this closer to a concept than a roadmap.
The underlying problem it solves is real: camera sensors can now capture footage faster than the processors inside the camera can handle it. Splitting that work across two devices is a straightforward answer, and if Sony eventually ships something along these lines, as an add-on accessory or part of a professional camera package, the foundation laid here gives them a reasonable starting point.
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The drawings
7 drawing sheets from US 2026/0270555 A1 · click any drawing to enlarge
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