Samsung patents circuit that adjusts signal strength to improve clarity
Samsung describes a circuit design for electronic devices that manages the strength of radio signals received by an antenna. It uses a processor to switch between letting the signal pass directly or reducing its strength through a specific resistance level, depending on how strong the incoming signal is.
In the filing’s own words
An electronic device includes an amplifier circuit configured to amplify a radio frequency (RF) signal received from an antenna, the RF signal having a receiving power, an attenuator circuit connected between the amplifier circuit and a mixer, the attenuator circuit including at least one resistor and at least one transistor, and a processor configured to turn on a first transistor among the at least one transistor based on the receiving power being less than a threshold value, a signal output from the amplifier circuit being directly transferred to the mixer based on the first transistor being turned on, and control one or more transistors among the at least one transistor using a look-up table based on the receiving power being greater than or equal to the threshold value, the attenuator circuit having a resistance value corresponding to the receiving power based on the control of the one or more transistors.
What exactly they claim (claim 1)
1. An electronic device comprising: an amplifier circuit configured to amplify a radio frequency (RF) signal received from an antenna, the RF signal having a receiving power; an attenuator circuit connected between the amplifier circuit and a mixer, the attenuator circuit including at least one resistor and at least one transistor; and a processor electrically connected to the attenuator circuit and the amplifier circuit, the processor being configured to turn on a first transistor among the at least one transistor based on the receiving power being less than a threshold value, a signal output from the amplifier circuit being directly transferred to the mixer based on the first transistor being turned on, and control one or more transistors among the at least one transistor using a look-up table based on the receiving power being greater than or equal to the threshold value, the attenuator circuit having a first resistance value corresponding to the receiving power based on the control of the one or more transistors.
Facts
- Company
- Samsung (Samsung Electronics Co., Ltd.)
- Official title
- Circuit for attenuating signal received through antenna to improve SNR, electronic device including the same, and method for controlling the same
- Patent number
- US12744515B2
- Application number
- 18810639
- Filed
- Aug 21, 2024
- Granted
- Sep 22, 2026
- Inventors
- 7
- Claims
- 20
Classified under
H03H 11/24 Electricity & electronicsH03G 3/001 Electricity & electronicsH03H 17/0054 Electricity & electronicsH04B 1/0475 Electricity & electronicsH04B 1/0483 Electricity & electronicsH03F 1/12 Electricity & electronicsMore from Samsung in Chips & hardware
- Samsung patents chip that combines camera and screen Oct 13, 2026
- Samsung patents faster chip testing using machine learning Sep 1, 2026
- Samsung patents radar method to pinpoint target direction more accurately Sep 1, 2026
- Samsung patents memory chip that searches data by content, not address Sep 1, 2026
- Samsung patents chip design that skips empty data to speed up AI Sep 1, 2026
Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.