Vacuum tube and transistor amplifier natural sound field tone dividing system

• US 10,727,792 B1
• Filed: 06/27/2019
• Issued: 07/28/2020
• Est. Priority Date: 06/27/2019
• Status: Active Grant

• Current Assignee: Echowell Electronic Co., Ltd.
• Original Assignee: Echowell Electronic Co., Ltd.
• Inventors: Chen, Hsi-Hsien
• Primary Examiner(s): Chin, Vivian C
• Assistant Examiner(s): Fahnert, Friedrich
• Application Number:
  US16/454,292
• Time in Patent Office: 397 Days
• Field of Search: 381103, 381111, 381120, 381123, 310 10, 310 53, 310 84, 310124 R, 310250, 310286, 310295
• CPC Class Codes: G10H 2210/311 Distortion, i.e. desired non-linear audio processing to change the tone colour, e.g. by adding harmonics or deliberately distorting the amplitude of an audio waveform
• CPC Class Codes: G10H 3/14 using mechanically actuated vibrators with pick-up means G10H3/24 takes precedence
• CPC Class Codes: G10H 3/187 for distorting the signal, e.g. to simulate tube amplifiers changing the tone color by non-linear elements G10H1/16
• CPC Class Codes: H03F 2200/03 the amplifier being designed for audio applications
• CPC Class Codes: H03F 2200/549 the amplifier comprising means to emulate the vacuum tube behaviour
• CPC Class Codes: H03F 3/181 Low-frequency amplifiers, e.g. audio preamplifiers
• CPC Class Codes: H03F 3/19 with semiconductor devices only
• CPC Class Codes: H03F 3/21 with semiconductor devices only H03F3/245 takes precedence
• CPC Class Codes: H03F 5/00 Amplifiers with both discharge tubes and semiconductor devices as amplifying elements
• CPC Class Codes: H03H 7/0161 Bandpass filters H03H7/12 takes precedence

Abstract

A vacuum tube and transistor amplifier natural sound field tone dividing system includes: a front-end circuit for receiving and processing an input signal to thereby generate an audio signal; a transistor power amplifying circuit connected to the front-end circuit and adapted to process a low-frequency signal in the audio signal and play the low-frequency signal with a first player; and a vacuum tube power amplifying circuit connected to the front-end circuit and adapted to process a medium-frequency signal and a high-frequency signal in the audio signal, play the medium-frequency signal with a second player, and play the high-frequency signal with a third player, wherein the transistor power amplifying circuit and the vacuum tube power amplifying circuit are independent of each other.

Claims

1. A vacuum tube and transistor amplifier natural sound field tone dividing system, comprising:

a front-end circuit for receiving and processing an input signal to thereby generate an audio signal;

a transistor power amplifying circuit connected to the front-end circuit and adapted to process a low-frequency signal in the audio signal and play the low-frequency signal with a first player; and

a vacuum tube power amplifying circuit connected to the front-end circuit and adapted to process a medium-frequency signal and a high-frequency signal in the audio signal, play the medium-frequency signal with a second player, and play the high-frequency signal with a third player,

wherein the transistor power amplifying circuit and the vacuum tube power amplifying circuit are independent of each other;

wherein the vacuum tube power amplifying circuit comprises a high-pass pure vacuum tube power amplifying circuit for generating the medium-frequency signal and the high-frequency signal according to the audio signal and amplifying output power of the medium-frequency signal and the high-frequency signal;

wherein the vacuum tube power amplifying circuit comprises a passive tone dividing circuit connected between the high-pass pure vacuum tube power amplifying circuit and the third player and adapted to process the high-frequency signal so as to generate a high-pitch signal and provide the high-pitch signal to the third player.

2. The vacuum tube and transistor amplifier natural sound field tone dividing system of claim 1, wherein the front-end circuit receives the input signal from one of a television system, a cellular Bluetooth playing system, and an audio disk player playing system.

3. The vacuum tube and transistor amplifier natural sound field tone dividing system of claim 1, wherein the transistor power amplifying circuit comprises a low-pass filtering circuit connected to the front-end circuit and adapted to perform low-pass processing on the audio signal from the front-end circuit so as to generate the low-frequency signal.

4. The vacuum tube and transistor amplifier natural sound field tone dividing system of claim 3, wherein the transistor power amplifying circuit comprises a transistor power amplifier for amplifying output power of the low-frequency signal.

5. The vacuum tube and transistor amplifier natural sound field tone dividing system of claim 4, wherein the transistor power amplifying circuit comprises a preamplifier connected between the low-pass filtering circuit and the transistor power amplifier and adapted to amplify the output power of the low-frequency signal and then provide the amplified output power to the transistor power amplifier.

6. The vacuum tube and transistor amplifier natural sound field tone dividing system of claim 1, wherein the vacuum tube power amplifying circuit does not have a high-pass filter independent of the high-pass pure vacuum tube power amplifying circuit.

7. The vacuum tube and transistor amplifier natural sound field tone dividing system of claim 1, wherein the vacuum tube power amplifying circuit enables a sound transmission delay relative to the transistor power amplifying circuit.