Intelligent gain control amplifying circuit and antenna

Abstract

The utility model relates to the field of antenna signal processing, in particular to an intelligent gain control amplifying circuit, which comprises a signal input end used for receiving signals; the first-stage amplification circuit module is used for amplifying a signal received by the signal input end; the distribution circuit module is used for distributing the signal amplified by the first-stage amplification circuit module into a first signal and a second signal; the gain control circuit module is used for performing gain control on the first signal; the detection processing circuit module is used for carrying out detection processing on the second signal; the power supply circuit is used for supplying power; the signal output end is used for outputting a signal; the system further comprises a software control circuit module for adjusting the gain control circuit module according to the output of the detection processing circuit module, the system can avoid amplification and processing of useless signals by accurately capturing and amplifying the needed signal wave band, high-quality signal processing and stability improvement are achieved, better user experience is directly converted, and the system is suitable for popularization and application. And the overall viewing effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of antenna signal processing, and more specifically, to an intelligent gain control amplifier circuit and an antenna. Background Technology

[0002] Current TV receiving antennas typically use either built-in amplifiers or passive antennas with external amplifiers. The amplifiers are mainly fixed-gain amplifiers, but some are manually adjustable or have automatic gain control. Users need to patiently and repeatedly adjust the antenna position and amplifier gain when using fixed-gain and manually adjustable antenna amplifiers in order to achieve the desired playback effect. For example, Chinese utility model patent CN221615032U describes an antenna automatic gain control module with a signal strength indicator. This module includes a signal processing module for transmitting the signal received by the antenna to the television. The signal processing module comprises an amplifier circuit module for amplifying the received signal, a distribution circuit module for splitting the amplified signal, a gain adjustment circuit module for dynamically adjusting the amplified signal, a detector circuit module for converting the signal into voltage, a control circuit module, and a signal indicator module. The amplifier circuit module is connected to one end of the distribution circuit module; the other end of the distribution circuit module is connected to both the detector circuit module and the gain adjustment circuit module. The detector circuit module is connected to the input terminal of the control circuit module, and the control terminal of the control circuit module is connected to both the gain adjustment circuit module and the signal indicator module. The signal indicator displays a rated color based on the received signal strength. However, in this module, users still need to use the signal indicator color to locate the transmitter and manually adjust the signal strength gain to ensure good reception, which is cumbersome and significantly impacts the user experience. Therefore, there is an urgent need for a technical solution to address these problems and provide users with a better experience. Utility Model Content

[0003] The present invention aims to overcome the shortcomings of the prior art and provide an intelligent gain control amplifier circuit to solve the problem of users manually adjusting the gain of the signal strength to ensure the viewing effect, thereby achieving automatic signal strength adjustment and improving the user experience.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is an intelligent gain control amplifier circuit, including a signal input terminal for receiving signals; a first-stage amplifier circuit module for amplifying the signal received at the signal input terminal; a distribution circuit module for distributing the signal amplified by the first-stage amplifier circuit module into a first signal and a second signal; a gain control circuit module for gain control of the first signal; a detection processing circuit module for detection processing of the second signal; a power supply circuit for power supply; and a signal output terminal for outputting signals; further including a software control circuit module for adjusting the gain control circuit module according to the output of the detection processing circuit module; the input terminal is sequentially connected to the first-stage amplifier circuit module, the distribution circuit module, the gain control circuit module, and the signal output terminal to form signal amplification control, and the distribution circuit module is sequentially connected to the detection processing circuit module, the software control circuit module, and the gain control circuit module to form intelligent signal gain. After the television signal enters through the signal input terminal, it is amplified by the first-stage amplification circuit module. Then, the signal is split into two signals, a first signal and a second signal, by the distribution circuit module. The second signal is detected and analyzed by the detection and processing circuit module. The software control module adjusts and selects the required second signal based on the detected and analyzed second signal from the detection and processing circuit module. This allows the gain control circuit module to capture the first signal that needs to be amplified from the signal band allocated by the distribution circuit module, with reference to the signal band sample, and finally output from the signal output terminal.

[0005] Furthermore, the intelligent gain control amplifier circuit also includes a 5G filter circuit module for filtering out the 5G signal band and retaining the VHF / UHF television signal band. The 5G filter circuit module is connected between the signal input terminal and the first-stage amplifier circuit module. The 5G filter circuit module utilizes filtering technology to screen the input signal, thereby filtering out the 5G signal band while retaining the VHF / UHF television signal band.

[0006] Furthermore, the intelligent gain control amplifier circuit further includes a second-stage amplifier module for amplifying the signal from the gain control circuit module. This second-stage amplifier module is connected between the gain control circuit module and the signal output terminal. The second-stage amplifier module receives the output signal from the gain control circuit module and amplifies that signal.

[0007] Furthermore, the intelligent gain control amplifier circuit also includes an upward power supply circuit module for supplying power to the signal input terminal. The upward power supply circuit module is connected between the signal input terminal and the software control circuit module to provide additional power to the signal input terminal.

[0008] Furthermore, the detection processing circuit module is a logarithmic amplifier circuit, which consists of a logarithmic amplifier chip and peripheral circuits that work with it to perform detection processing on the signal and extract signal features.

[0009] Furthermore, the 5G filtering circuit module is a filter used to filter out the 5G signal band and retain the VHF / UHF television signal band.

[0010] Furthermore, the second-stage amplifier circuit module is a signal amplification amplifier, which consists of a broadband matching amplifier and peripheral circuits that work together to further amplify the signal after gain adjustment.

[0011] Furthermore, the power supply circuit module is powered by a DC / USB 5V power supply to provide the necessary electrical energy for the entire circuit.

[0012] This utility model also provides an antenna containing an intelligent gain control amplifier circuit, including the aforementioned intelligent gain control amplifier circuit, one end of which is connected to the signal input terminal of the input antenna for receiving signals, and the other end of which is connected to the signal output terminal for outputting signals.

[0013] Furthermore, the antenna containing a smart gain control amplifier circuit includes a 5G filter circuit module for filtering out the 5G signal band and retaining the VHF / UHF television signal band. The 5G filter circuit module is connected between the signal input terminal and the first-stage amplifier circuit module. The antenna also includes a 5G signal output terminal for outputting the 5G signal filtered out by the 5G filter circuit module.

[0014] Compared with existing technologies, the advantages of this invention, employing the above-described solution, are as follows: The initial amplification of the signal by the first-stage amplifier circuit module, followed by precise amplification of specific signal bands by the subsequent gain control circuit module, significantly improves signal strength and clarity, reduces signal attenuation and distortion during transmission, thereby providing higher quality television picture and sound. The distribution circuit module splits the signal into two, generating a first signal and a second signal. This design allows the system to monitor and analyze the signal without interfering with the original signal. The collaborative work of the detection processing circuit module and the software control module enables real-time monitoring of signal quality and adjustment of gain as needed, thereby enhancing signal stability and reliability. The software control module, through the second signal provided by the detection processing circuit module, can intelligently select and adjust the required first signal. This flexibility allows the system to adapt to television signals from different sources and in different formats, meeting the needs of different users. By precisely capturing and amplifying the required signal band, the system avoids amplifying and processing useless signals. High-quality signal processing and improved stability directly translate into a better user experience and enhance the overall viewing experience.

[0015] The 5G filtering circuit module utilizes filtering technology to precisely control the frequency range of the signal, effectively filtering out the 5G signal band while retaining other important signals such as VHF / UHF television signals. This module not only avoids interference from 5G signals to other signals and ensures stable reception of sensitive signals such as television signals, but also significantly improves the quality of the output signal, making the user's viewing experience clearer and more stable.

[0016] The second-stage amplifier module enhances the signal's driving capability by amplifying the signal and reducing distortion and noise, enabling it to output greater power. This helps maintain signal stability and significantly improves the quality of the output signal. This results in a clearer and more accurate received signal, enhancing the user experience.

[0017] The upward power supply circuit module is connected to the signal input terminal to provide additional power to the signal input terminal. It can be flexibly used with various passive and active antennas. When used with an active antenna, the antenna does not need a separate power supply box, which helps to ensure the stability and reliability of the signal input terminal, thereby improving the performance of the entire circuit. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the module composition of an embodiment of the present utility model.

[0019] Figure 2 This is the circuit schematic diagram of this utility model.

[0020] Figure 3 This is an enlarged diagram of the circuit principle of the first-stage amplifier module of this utility model.

[0021] Figure 4 This is an enlarged diagram of the distribution circuit module of this utility model.

[0022] Figure 5 This is an enlarged schematic diagram of the gain control circuit module of this utility model.

[0023] Figure 6 This is an enlarged diagram of the circuit principle of the detection processing circuit module of this utility model.

[0024] Figure 7 This is an enlarged diagram of the circuit principle of the software control circuit module of this utility model.

[0025] Figure 8 This is an enlarged diagram of the power supply circuit module of this utility model.

[0026] Figure 9 This is an enlarged diagram of the 5G filter circuit module of this utility model.

[0027] Figure 10 This is an enlarged diagram of the circuit principle of the second-stage amplifier module of this utility model.

[0028] Among them, 1-first stage amplifier circuit module, 2-distribution circuit module, 3-gain control circuit module, 4-detection processing circuit module, 5-software control circuit module, 6-power supply circuit module, 7-5G filter circuit module, 8-second stage amplifier circuit module, and 9-upward power supply circuit module. Detailed Implementation

[0029] To facilitate understanding of this utility model, a more complete description of it is provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0030] like Figure 1 and Figure 2As shown, in this embodiment, an intelligent gain control amplifier circuit includes a signal input terminal for receiving signals; a 5G filtering circuit module for filtering out the 5G signal band and retaining the VHF / UHF television signal band from the signal received at the signal input terminal; a first-stage amplifier circuit module for amplifying the signal filtered by the 5G filtering circuit module; a distribution circuit module for allocating the signal amplified by the first-stage amplifier circuit module into a first signal and a second signal; a gain control circuit module for gain control of the first signal; a detection processing circuit module for detection processing of the second signal; a power supply circuit for power supply; a second-stage amplifier circuit module for amplifying the signal gained by the gain control circuit module; and a signal output terminal for outputting signals; further comprising a software control circuit module for adjusting the gain control circuit module according to the output of the detection processing circuit module.

[0031] The input terminal is sequentially connected to the 5G filter circuit module, the first-stage amplifier circuit module, the distribution circuit module, the gain control circuit module, the second-stage amplifier module, and the signal output terminal to form a signal-controlled amplification. For example... Figure 2 and Figure 9 As shown, the 5G filtering circuit module is used to filter out the 5G signal band from the signal received at the signal input terminal, while preserving the VHF / UHF television signal band. The 5G filtering circuit module is a filter. The first-stage amplifier circuit module is responsible for initially amplifying the signal filtered by the 5G filtering circuit module, such as... Figure 2 and Figure 3 As shown, specifically, the first-stage amplifier circuit module is a signal amplification amplifier, which consists of a broadband matching amplifier and its associated peripheral circuitry. Specifically, it employs a low-noise, high-output-level amplifier circuit with noise as low as 1dB and an output level reaching 106dBuv. It can use an amplifier IC of model BGA614 or NJG1152KA1 to ensure that both strong and weak effective signals can be received normally. Figure 2 and Figure 4 As shown, the distribution circuit module distributes the signal amplified by the first-stage amplifier module into a first signal and a second signal. Specifically, a one-input, two-output signal distributor is used to prevent signal interference and ensure signal accuracy.

[0032] The distribution circuit module, detection processing circuit module, software control circuit module, and gain control circuit module are sequentially connected to form a signal intelligent gain. For example... Figure 2 and Figure 6As shown, the detection processing circuit module detects and analyzes the second signal transferred from the distribution circuit module. Specifically, it is a logarithmic amplifier circuit, which consists of a logarithmic amplifier chip and its associated peripheral circuitry. The logarithmic amplifier circuit uses a dedicated sampling and detection IC circuit for more sensitive detection; an MS2351M detector chip can be used. Figure 2 and Figure 7 As shown, the software control circuit module adjusts and selects the signal information detected and analyzed by the detection processing circuit module. Specifically, the HC89S003F4 microcontroller software dynamically adjusts the gain value of the gain control circuit module based on the signal strength information provided by the detection processing circuit module, through a preset algorithm or logic.

[0033] When the input signal is weak, the software control circuit module instructs the gain control circuit module to increase the gain to enhance the output signal strength; conversely, when the input signal is strong, the software control circuit module decreases the gain to avoid output signal distortion or overload. The gain control circuit module references the second signal to select the first signal that needs amplification, filtering out other signal bands that do not require amplification.

[0034] like Figure 2 and Figure 10 As shown, the second-stage amplifier circuit module is responsible for amplifying the signal after gain control by the gain control circuit. The second-stage amplifier circuit module is a signal amplification amplifier, which consists of a broadband matching amplifier and its peripheral circuits. Specifically, the second-stage amplifier circuit module adopts a low-noise, high-output-level amplifier circuit with noise as low as 1dB and an output level of 106dBuv. It can use a BGA614 or NJG1152KA1 amplifier IC to ensure that both strong and weak effective signals can be received normally.

[0035] like Figure 2 and Figure 8 As shown, the power supply circuit module is powered by a DC / USB 5V power supply.

[0036] The upward power supply circuit module can be flexibly used with various passive and active antennas. When used with an active antenna, the antenna does not need a separate power supply box.

[0037] In summary, to facilitate understanding of the above-described intelligent gain control amplifier circuit, the following explanation of this embodiment will further elaborate on its specific working process.

[0038] Specifically, the steps include the following:

[0039] S1. The signal received by the antenna is sent to the 5G filtering circuit module through the antenna signal input terminal to filter out the 5G signal and retain the VHF / UHF TV signal. Then the filtered signal is sent to the first stage amplifier circuit module for signal amplification.

[0040] S2. The first-stage amplifier circuit module transfers the amplified signal to the distribution circuit module for signal distribution;

[0041] S3. The distribution circuit module divides the signal amplified by the first-stage amplifier circuit module into two signals: a first signal and a second signal. The first signal is sent to the gain control circuit module, and the second signal is sent to the detection processing circuit module.

[0042] S4. The detection and processing circuit module detects and analyzes the second signal transferred from the distribution circuit module, and then transfers the detected and analyzed second signal information to the software control circuit module.

[0043] S5. The software control circuit module adjusts and selects the second signal information detected and analyzed by the detection processing circuit module, and then transfers the adjusted and selected second signal information to the gain control circuit module.

[0044] S6. The gain control circuit module extracts the required first signal within the signal band transferred from the signal distribution module based on the second signal information adjusted and selected by the software control circuit module, filters out other unnecessary signal bands, and then transfers the extracted signal band to the second-stage amplifier circuit module.

[0045] S7. The second-stage amplifier circuit module amplifies the required signal band within the first signal transferred from the second signal information capture and distribution module according to the second signal information adjusted and selected by the gain control circuit module and the software control circuit module. Then, the amplified signal is transferred to the signal output terminal and sent to the television.

[0046] Through steps S1-S7, the aforementioned signal processing flow is achieved, effectively filtering 5G interference while preserving VHF / UHF television signals, significantly improving signal quality. Further multi-stage amplification and precise adjustment ensure maximum signal strength and clarity, while enhancing signal stability and reliability. This design not only improves the flexibility of signal processing, enabling intelligent selection and adjustment of the required signal band, but also optimizes resource utilization, avoiding the amplification and processing of useless signals. Ultimately, these improvements collectively enhance the user experience, allowing users to enjoy clearer, smoother, and more stable television programs and entertainment content.

[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the technical solution of this utility model, and are not intended to limit the specific implementation of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the claims of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An intelligent gain control amplifier circuit, comprising: a signal input terminal for receiving a signal; a first-stage amplifier circuit module (1) for amplifying the signal received at the signal input terminal; a distribution circuit module (2) for distributing the signal amplified by the first-stage amplifier circuit module into a first signal and a second signal; a gain control circuit module for gain control of the first signal; a detection processing circuit module (4) for detection processing of the second signal; a power supply circuit module (6) for power supply; and a signal output terminal for outputting a signal; characterized in that: It also includes a software control circuit module (5) that adjusts the gain control circuit module (3) according to the output of the detection processing circuit module (4); the input terminal is sequentially connected to the first stage amplifier circuit module (1), the distribution circuit module (2), the gain control circuit module (3) and the signal output terminal to form signal amplification control, and the distribution circuit module (2) is sequentially connected to the detection processing circuit module (4), the software control circuit module (5) and the gain control circuit module (3) to form intelligent signal gain.

2. The intelligent gain control amplifier circuit according to claim 1, characterized in that: It also includes a 5G filtering circuit module (7) for filtering out the 5G signal band and retaining the VHF / UHF television signal band, wherein the 5G filtering circuit module is connected between the signal input terminal and the first-stage amplifier circuit module (1).

3. The intelligent gain control amplifier circuit according to claim 1, characterized in that: It also includes a second-stage amplifier circuit module (8) for amplifying the signal of the gain control circuit module (3), the second-stage amplifier circuit module (8) being connected between the gain control circuit module (3) and the signal output terminal.

4. The intelligent gain control amplifier circuit according to claim 1, characterized in that: It also includes an upward power supply circuit module (9) for supplying power to the signal input terminal, the upward power supply circuit module (9) being connected between the signal input terminal and the software control circuit module (5).

5. The intelligent gain control amplifier circuit according to claim 1, characterized in that: The detection processing circuit module (4) is a logarithmic amplifier circuit, which consists of a logarithmic amplifier chip and peripheral circuits that work with it.

6. The intelligent gain control amplifier circuit according to claim 2, characterized in that: The 5G filtering circuit module (7) is a filter.

7. The intelligent gain control amplifier circuit according to claim 3, characterized in that: The second-stage amplifier circuit module (8) is a signal amplification amplifier, which consists of a broadband matching amplifier and peripheral circuits that work with it.

8. The intelligent gain control amplifier circuit according to claim 1, characterized in that: The power supply circuit module (6) is powered by a DC / USB 5V power supply.

9. An antenna containing an intelligent gain control amplifier circuit, characterized in that: The system includes the intelligent gain control amplifier circuit according to any one of claims 1 to 8, wherein one end of the intelligent gain control amplifier circuit is connected to the input antenna signal input terminal for receiving signals, and the other end is connected to the signal output terminal for outputting signals.

10. An antenna containing a smart gain control amplifier circuit according to claim 9, characterized in that: The antenna includes a 5G filtering circuit module (7) for filtering out 5G signal bands and retaining VHF / UHF television signal bands. The 5G filtering circuit module is connected between the signal input terminal and the first-stage amplifier circuit module (1). The antenna also includes a 5G signal output terminal for outputting the 5G signal filtered out by the 5G filtering circuit module (7).

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