# US 12,113,567 B2 · Wireless signal digital conversion device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,113,567 B2 - Document ID: US12113567B2 - Status: Granted - Kind: B2 - Application number: 18/024,668 - Filed: 2020-09-03 - Published: 2023-08-03 - Granted: 2024-10-08 - Earliest claimed: 2020-09-03 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Sungho Park; Kwansoo Kim; Sunam Kim; Jeongin Kim; Jaehwan Kim; Sungryong Hong - Web page: https://patentgrep.com/patent/US12113567B2 ## CPC - H04B 1/40: Circuits - H03M 1/06: Continuously compensating for, or preventing, undesired influence of physical parameters (periodically, {e.g. by using stored correction values,} H03M1/10) - H03M 1/12: Analogue/digital converters ({H03M1/001 – } H03M1/10 take precedence) - H03M 1/18: Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging - H03M 1/20: Increasing resolution using an n bit system to obtain n + m bits - H03M 7/16: Conversion to or from unit-distance codes, e.g. Gray code, reflected binary code - H03M 7/165: {Conversion to or from thermometric code} - H04B: TRANSMISSION - H03M: CODING; DECODING; CODE CONVERSION IN GENERAL (using fluidic means F15C4/00; optical analogue/digital converters G02F7/00; coding, decoding or code conversion, specially adapted for particular applications, see the relevant subclasses, e.g. G01D, G01R, G06F, G06T, G09G, G10L, G11B, G11C, H04B, H04L, H04M, H04N; ciphering or deciphering for cryptography or other purposes involving the need for secrecy G09C) ## Abstract A wireless signal digital conversion device includes: a plurality of RF signal processing units for receiving wireless signals, and adjusting the voltage levels of the wireless signals based on automatic gain values; a plurality of unit ADCs for receiving in-phase signals and quadrature phase signals of the RF signal processing units, and performing analog-to-digital conversion based on different differential reference voltages; an encoder unit for generating binary data having less bits than binary data outputted from the unit ADCs based on the binary data outputted from the unit ADCs; and an automatic gain control unit for generating automatic gain values based on the output of a spatial ADC. A terminal can be linked to an artificial intelligence module, a drone (unmanned aerial vehicle (UAV)), a robot, an augmented reality (AR) device, a virtual reality (VR) device, a device related to 6G services, and the like. ## Claims ### Claim 1 A digital conversion device of a wireless signal, comprising: a plurality of antennas for receiving a reception signal of a predetermined range of reception voltage level; a plurality of unit analog to digital converter (ADC) portions one-to-one matched to the antennas and for converting a partial voltage level within the range of the reception voltage level of the reception signal to binary data, wherein the plurality of unit ADC portions converts each of the partial voltage level having different voltage level to binary data; and an encoder for generating a digital code that a voltage level corresponding to the reception voltage level is converted to binary data based on the binary data output from the unit ADC portions. ### Claim 2 (depends on 1) The digital conversion device of a wireless signal of claim 1, wherein each of the unit ADC portions includes: a plurality of RF signal processors for adjusting the voltage level of the reception signal based on an automatic gain value; and a plurality of unit ADCs for receiving an input of an in-phase signal and a quadrature-phase signal of each of the RF signal processors, wherein each of the plurality of unit ADCs performs an analogue to digital conversion based on a differential reference voltage. ### Claim 3 (depends on 2) The digital conversion device of a wireless signal of claim 2, wherein the encoder generates binary data of a bit lower than a bit of the binary data based on the binary data output from the unit ADCs. ### Claim 4 (depends on 3) The digital conversion device of a wireless signal of claim 3, further comprising an automatic gain controller for generating the automatic gain value based on an output of a spatial ADC. ### Claim 5 (depends on 3) The digital conversion device of a wireless signal of claim 3, wherein the encoder includes: a plurality of unit encoders for generating a thermometer code from respective binary data output from the unit ADCs; and a spatial encoder for generating binary data of a smaller bit based on the binary data output from each of the unit encoders. ### Claim 6 (depends on 5) The digital conversion device of a wireless signal of claim 5, wherein each of the unit encoders outputs data of 1-bit. ### Claim 7 (depends on 6) The digital conversion device of a wireless signal of claim 6, wherein the encoder includes m unit encoders, and wherein the encoder generates binary data of n-bit (n is a natural number smaller than m) based on m binary data (m is a natural number) output from the unit encoders, and the binary data of n-bit is generated to be proportional to a value of “1” among the m binary data. ### Claim 8 (depends on 7) The digital conversion device of a wireless signal of claim 7, wherein the number of unit encoders is set to “2n−1”. ### Claim 9 (depends on 7) The digital conversion device of a wireless signal of claim 7, wherein the differential reference voltage input to each of the m spatial encoders is proportional by an integer multiple with each other. ### Claim 10 (depends on 4) The digital conversion device of a wireless signal of claim 4, wherein each of the RF signal processors is provided with the automatic gain value of a same size. ### Claim 11 (depends on 10) The digital conversion device of a wireless signal of claim 10, wherein the automatic gain value includes: a first automatic gain value input to a low noise amplifier and a second automatic gain value input to a variable gain adjuster. ### Claim 12 (depends on 11) The digital conversion device of a wireless signal of claim 11, wherein the first automatic gain value is adjusted such that a different of output signal levels among the low noise amplifiers is less than a preconfigured threshold value. ### Claim 13 (depends on 11) The digital conversion device of a wireless signal of claim 11, wherein the automatic gain controller controls the first and second automatic gain values to deactivate the RF signal processor to which the reception antenna is belonged, based on the voltage level of a signal received through an arbitrary antenna being a preconfigured threshold voltage or lower. ### Claim 14 (depends on 4) The digital conversion device of a wireless signal of claim 4, wherein the automatic gain controller generates the automatic gain value based on outputs of unit encoders or spatial encoders. ### Claim 15 (depends on 14) The digital conversion device of a wireless signal of claim 14, wherein the automatic gain controller calculates an instantaneous power based on a square of the in-phase signal and a square of the quadrature-phase signal and calculates the automatic gain value based on a hysteresis of the difference value between the instantaneous power and a target power value. ### Claim 16 (depends on 1) The digital conversion device of a wireless signal of claim 1, wherein each of the spatial ADCs operates by using a common clock. ### Claim 17 (depends on 1) The digital conversion device of a wireless signal of claim 1, wherein a phase of the reception signal is arranged with respect to an input signal of the unit ADC. ### Claim 18 (depends on 1) The digital conversion device of a wireless signal of claim 1, wherein each of the spatial ADCs digital-converts the partial voltage level on a different timing.