ROHM has been granted a patent for a semiconductor device featuring dual input circuits that facilitate comparison operations between an input signal and a reference signal. The design includes parallel configurations of signal and reference transistors, enhancing the device’s functionality in signal processing applications. GlobalData’s report on ROHM gives a 360-degree view of the company including its patenting strategy. Buy the report here.
Smarter leaders trust GlobalData
According to GlobalData’s company profile on ROHM, Under-screen biometric identification was a key innovation area identified from patents. ROHM's grant share as of June 2024 was 50%. Grant share is based on the ratio of number of grants to total number of patents.
Semiconductor device for signal comparison using transistors
The patent US12047076B2 describes a semiconductor device designed for signal comparison, featuring a dual-input configuration. The device includes a first input for an input signal and a second input for a reference signal, with a comparison stage that utilizes a current source connected to different potentials. This stage comprises two current path parts, each containing input circuits and load circuits. The input circuits consist of signal and reference transistors arranged in parallel, allowing the input signal and reference signal to be processed simultaneously. Notably, the design specifies that the sizes of the transistors can vary, with certain configurations indicating that the reference transistors are smaller than their corresponding signal transistors.
Further claims detail the operational characteristics of the semiconductor device, including the response speed of the comparison operation, which is noted to be slower when the input signal is of small amplitude. The load circuits can be implemented using a current mirror circuit, and they may also include transistors with their gate and drain connected or resistors. Additionally, the device incorporates a reference voltage source to generate the reference signal and a voltage source circuit to supply voltage to the current source. An output stage is also included, which processes the outputs from both the voltage source circuit and the comparison stage to produce a final output signal. This configuration aims to enhance the performance and efficiency of signal comparison in semiconductor applications.
To know more about GlobalData’s detailed insights on ROHM, buy the report here.
Data Insights
From
The gold standard of business intelligence.
Blending expert knowledge with cutting-edge technology, GlobalData’s unrivalled proprietary data will enable you to decode what’s happening in your market. You can make better informed decisions and gain a future-proof advantage over your competitors.
GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.
GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
