# US 2025/0085406 A1 · Method for operating a transmission device for electromagnetic signals, transmission device, detection device, and vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0085406 A1 - Document ID: US20250085406A1 - Status: Published application - Kind: A1 - Application number: 18/294,782 - Filed: 2022-08-01 - Published: 2025-03-13 - Earliest claimed: 2021-08-04 - Assignees: Valeo Schalter und Sensoren GmbH - Applicants: Valeo Schalter Und Sensoren GmbH - Inventors: Christoph Parl; Johannes Appl; Wensi Zheng - Web page: https://patentgrep.com/patent/US20250085406A1 ## CPC - G01S 7/497: Means for monitoring or calibrating - G01S 7/484: Transmitters - G01S 17/931: of land vehicles - H01S 5/0428: {for applying pulses to the laser} - H01S 5/06804: {by monitoring an external parameter, e.g. temperature} - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - H01S: DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL ## Abstract A method for operating a transmission device for electromagnetic signals is disclosed. The method includes supplying at least one signal source with electric supply energy in order to emit electromagnetic signals. An influence of temperature on a transmission power of the at least one signal source is compensated for. In order to compensate for the influence of temperature, a signal duration of at least one electromagnetic signal is adapted on the basis of at least one temperature variable which characterizes a temperature of the at least one signal source. ## Claims ### Claim 1 A method for operating a transmission device for electromagnetic signals, the method comprising supplying at least one signal source with electric supply energy in order to emit electromagnetic signals, wherein an influence of temperature on a transmission power of the at least one signal source is compensated for, wherein, in order to compensate for the influence of temperature, a signal duration of at least one electromagnetic signal is adapted on the basis of at least one temperature variable which characterizes a temperature of the at least one signal source. ### Claim 2 (depends on 1) The method as claimed in claim 1, wherein the electric supply energy has a pulsed power curve, and wherein a supply duration of the electric supply energy is adapted on the basis of the at least one temperature variable in order to adapt the signal duration of at least one electromagnetic signal. ### Claim 3 (depends on 1) The method as claimed in claim 1, characterized in that wherein the electric supply energy for the at least one signal source is controlled using at least one pulsed, trigger signal, and wherein a trigger signal duration of at least one trigger signal for controlling the electric supply energy for the at least one signal source is adapted on the basis of the at least one temperature variable. ### Claim 4 (depends on 1) The method as claimed in claim 1, wherein the signal duration of at least one electromagnetic signal is adapted by the number of pulses of a pulsed power curve of the electric supply energy, and/or wherein the signal duration of at least one electromagnetic signal is adapted by the number of pulses of a pulsed trigger signal for controlling the supply energy for the at least one signal source. ### Claim 5 (depends on 1) The method as claimed in claim 1, wherein the signal duration of at least one electromagnetic signal is adapted by using at least one correction variable predefined for the prevailing temperature, and/or wherein the signal duration of at least one electromagnetic signal is adapted by using a correction variable predefined for the present at least one temperature variable. ### Claim 6 (depends on 1) The method as claimed in claim 1, wherein at least one temperature variable is ascertained during operation of the at least one transmission device, wherein at least one temperature variable is ascertained using at least one sensor, and/or wherein at least one temperature variable is ascertained from a supply current and/or a supply voltage, for supplying power to the at least one signal source. ### Claim 7 A transmission device for electromagnetic signals, the transmission device comprising: at least one electrically operated signal source for emitting at least one electromagnetic signal, and at least one evaluating device, signal generator, or temperature detecting device for compensating for an influence of temperature on a transmission power of the at least one signal source, wherein the at least one evaluating device, signal generator, or temperature detecting device is for adapting a signal duration of at least one electromagnetic signal on the basis of at least one temperature variable characterizing a temperature of the at least one signal source. ### Claim 8 (depends on 7) The transmission device as claimed in claim 7, wherein at least one, in particular triggerable, control element, transistor, is arranged in at least one energy supply path of the at least one signal source, and wherein at least one signal generator is provided in order to generate at least one trigger signal for controlling at least one control element which is located in at least one energy supply path of the at least one signal source. ### Claim 9 (depends on 7) The transmission device as claimed in claim 7, wherein the transmission device comprises at least one signal generator for implementing a variable characterizing the signal duration, on the basis of the at least one temperature variable. ### Claim 10 A detection apparatus for monitoring at least one monitoring region, the detection apparatus comprising: at least one electrically operated signal source for emitting at least one electromagnetic signal, at least one evaluating device, signal generator, or temperature detecting device for compensating for an influence of temperature on a transmission power of the at least one signal source, at least one receiving device for receiving reflected electromagnetic signals and for converting them into electrical variables, and at least one control and evaluation device for controlling the detection apparatus and for evaluating electrical variables ascertained by the at least one receiving device, wherein the detection apparatus comprises at least one evaluating device, signal generator, or temperature detecting device for adapting a signal duration of at least one electromagnetic signal on the basis of at least one temperature variable characterizing a temperature of the at least one signal source. ### Claim 11 A vehicle comprising at least one detection apparatus for monitoring at least one monitoring region, wherein the at least one detection apparatus comprises: at least one electrically operated signal source for emitting at least one electromagnetic signal, at least one means for compensating for an influence of temperature on a transmission power of the at least one signal source, at least one receiving device for receiving reflected electromagnetic signals and for converting them into electrical variables, and at least one control and evaluation device for controlling the detection apparatus and for evaluating electrical variables ascertained by the at least one receiving device, wherein the detection apparatus comprises at least one evaluating device, signal generator, or temperature detecting device for adapting a signal duration of at least one electromagnetic signal on the basis of at least one temperature variable characterizing a temperature of the at least one signal source.