TW202326449A - Electronic device, electronic system and transmission method - Google Patents

Abstract

An electronic device, an electronic system and a transmission method are provided. The electronic device is adapted to communicate an audio information with an external device. The electronic device includes an interface circuit and a controller. The interface circuit is coupled to the external device. The controller is coupled to the interface circuit. The controller provides a write information to the external device through the interface circuit. When the audio information is communicated between the interface circuit and the external device, the controller performs an in-system programming to the external device according to the write information.

Description

Electronic device, electronic system and transmission method

The present invention relates to a device, a system and a method, and in particular to an electronic device, an electronic system and a transmission method.

In the existing audio communication technology, for example, when the electronic device conforms to the Inter-IC Sound (I ² S) standard to transmit audio information with the codec device, if the electronic device wants to target the codec at the same time If the memory of the decoding device is to be written, the audio information transmitted between the electronic device and the codec device must be stopped or suspended before the writing information can be transmitted. In this way, due to the impact of the writing operation, the audio content originally listened to or recorded by the user is bound to be interrupted.

The invention provides an electronic device, an electronic system and a transmission method, which can provide an online burning function when transmitting audio information.

The electronic device of the present invention is suitable for transmitting audio information with external devices. The electronic device includes an interface circuit and a controller. The interface circuit is coupled to the external device. The controller is coupled to the interface circuit. The controller provides writing information to the external device through the interface circuit, so that when audio information is transmitted between the interface circuit and the external device, the controller performs online programming of the external device according to the writing information.

The electronic system of the present invention includes a first electronic device and a second electronic device. The first electronic device includes a first interface circuit, a memory and a first controller. The first controller receives information from the first interface circuit to write into the memory. The second electronic device is coupled to the first electronic device to transmit audio information. The second electronic device includes a second interface circuit and a second controller. The second interface circuit is coupled to the first interface circuit for transmitting audio information. The second controller is coupled to the second interface circuit, wherein the second controller provides write information to the first controller through the second interface circuit, so that when audio information is transmitted between the first interface circuit and the second interface circuit, the second interface circuit A controller performs on-line programming of the memory according to the written information.

The transmission method of the present invention includes providing a first electronic device and a second electronic device for transmitting audio information between the first electronic device and the second electronic device; and transmitting audio information between the first electronic device and the second electronic device When, the second electronic device provides writing information to the first electronic device, so as to perform online programming on the first electronic device.

Based on the above, the electronic device, electronic system and transmission method of the present invention can keep the transmission of audio information continuous and uninterrupted while writing to the memory, effectively providing users with a better user experience.

FIG. 1 is a schematic block diagram of an electronic system 1 in an embodiment of the present invention. The electronic system 1 includes electronic devices 10 , 20 . The electronic devices 10 and 20 are coupled to each other and can transmit audio information to each other. The electronic device 10 includes a controller 11 and an interface circuit 12 . The electronic device 20 includes a controller 21 , an interface circuit 22 and a memory 23 . Overall, the interface circuit 12 and the interface circuit 22 are coupled to each other to transmit audio information, and the transmission between the interface circuit 12 and the interface circuit 22 can comply with an inter-IC Sound (I ² S) standard. . While the electronic device 10 and the electronic device 20 are transmitting audio information, the controller 11 of the electronic device 10 can also provide write information to the electronic device 20 through the interface circuit 12, so as to burn the memory 23 of the electronic device 20 online. recording (in system programming, ISP). Therefore, the electronic devices 10, 20 and the electronic system 1 can simultaneously write to the memory 23 of the electronic device 20 while keeping the transmission of audio information continuous and uninterrupted, which effectively improves the convenience of the system.

In some embodiments, the electronic device 10 may be, for example, a main control device, the electronic device 20 may be, for example, a codec device, and the electronic device 20 may be coupled to an audio device (not shown in FIG. 1 ). For example, the audio device may be a sound receiving or playing device such as an earphone, a microphone, or a speaker. The electronic device 20 connected between the electronic device 10 and the audio device can encode and/or decode audio information between the two. In this way, the electronic device 10 and the audio device can transmit audio information with the audio device through the electronic device 20 . That is, the electronic device 10 can receive the audio information provided by the audio device, or the electronic device 10 can provide the audio information to the audio device to transmit the audio information. Of course, the above-mentioned embodiment is only one of the implementation modes of the present invention, and is not intended to limit the implementation of the electronic system 1 and the electronic device 10 , 20 .

The electronic device 10 includes a controller 11 and an interface circuit 12. The controller 11 can access the memory (not shown in FIG. 1 ) of the electronic device 10 to obtain and execute software or firmware instructions, so as to encode and /or decoding operations, or other necessary operations. The interface circuit 12 is coupled to the controller 11, and the interface circuit 12 can be used for transmission conforming to the inter-chip audio standard.

The electronic device 20 includes a controller 21 , an interface circuit 22 and a memory 23 . The interface circuit 22 is coupled to the interface circuit 21 . The interface circuit 22 can be used for transmission conforming to the inter-chip audio standard. The controller 21 is coupled to the interface circuit 22, and the controller 21 can obtain the transmitted audio information from the interface circuit 22, and encode and/or decode the audio information. The memory 23 is coupled to the controller 21 . In some embodiments, the data stored in the memory 23 can be software or firmware instructions to be accessed and executed by the controller 21 . For example, the electronic device 20 can use the data stored in the memory 23 to perform functions such as voice control, adjustment, or sound mixing for the transmitted audio information.

The interface circuits 12 and 22 can conform to the Inter-IC Sound (I ² S) standard to transmit audio information. Furthermore, in order to realize the online programming function, the interface circuits 12 and 22 can also support time-division multiplexing (TDM). Therefore, while the audio information is being transmitted between the electronic devices 10 and 20 , the electronic device 10 can provide writing information for online programming of the electronic device 20 . That is to say, when the electronic device 10 updates or burns data on the memory 23 of the electronic device 20 , the audio information transmitted between the electronic devices 10 and 20 can remain continuous and uninterrupted. Therefore, the electronic devices 10, 20 and the electronic system 1 can provide users with better experience.

The controllers 11 and 21 can be, for example, central processing units (Central Processing Unit, CPU), or other programmable general purpose or special purpose micro control units (Micro Control Unit, MCU), microprocessors (Microprocessor), Digital Signal Processor (DSP), Programmable Controller, Application Specific Integrated Circuit (ASIC), Graphics Processing Unit (GPU), Arithmetic Logic Unit , ALU), Complex Programmable Logic Device (Complex Programmable Logic Device, CPLD), Field Programmable Logic Gate Array (Field Programmable Gate Array, FPGA), any other kind of integrated circuit, state machine, based on advanced reduced instruction A processor of an Advanced RISC Machine (ARM), or other similar components or a combination of the above components. Alternatively, the controllers 11 and 21 may be hardware circuits designed and implemented through hardware description language (Hardware Description Language, HDL) or any other digital circuit design methods known to those skilled in the art. The controllers 11 and 21 can be implemented in the same or different ways.

The memory 23 can store data for access. Memory 23 can be, for example, fixed or removable random access memory (Random Access Memory, RAM), read-only memory (Read-Only Memory, ROM), flash memory (Flash Memory), hard disk (Hard Disk Drive, HDD), Solid State Drive (Solid State Drive, SSD) or similar components or a combination of the above components. The memory 23 may store information related to functions such as voice control, adjustment, or sound mixing.

FIG. 2 is a schematic diagram of waveforms of signals transmitted between the electronic devices 10 and 20 in FIG. 1 . As shown in FIG. 2 , the signals transmitted between the electronic devices 10 and 20 include clock signals Clk1 and Clk2 and data signals DI/DO. In some embodiments, each pulse of the clock signal Clk1 may correspond to each bit of data transmitted between the electronic devices 10 and 20 . The clock signal Clk2 can define the frame time F1 for signal transmission between the electronic devices 10 and 20 , that is, the sampling frequency for signal transmission between the electronic devices 10 and 20 . The data signal DI/DO can be a signal transmitted between the electronic devices 10 and 20, and the data signal DI/DO can include audio information and writing information. In this way, the electronic devices 10 and 20 can transmit the data signal DI/DO according to the clock signal Clk1 and Clk2.

Specifically, the electronic devices 10 and 20 can communicate according to the clock signals Clk1 and Clk2, wherein the electronic devices 10 and 20 can distinguish the frame time F1 according to the clock signal Clk2, and the electronic devices 10 and 20 can distinguish the frame time F1 according to the clock signal Clk2. The signal Clk1 distinguishes a plurality of time intervals T1-T6 in each frame time F1, so that the electronic devices 10, 20 can transmit audio information and write information through the data signal DI/DO in the corresponding time intervals. In some embodiments, the period length of the frame time F1 divided by the clock signal Clk2 may be 192 times the period length of the clock signal Clk1, and each frame time F1 may be divided into time intervals T1˜T6. That is to say, there are 192 pulses of the clock signal Clk1 in each frame time F1, and 32 pulses of the clock signal Clk1 in each time interval T1˜T6. Of course, according to different design concepts and usage settings, the cycle length of the frame time F1 and the number of time intervals in each frame time F1 can be preferably adjusted. For example, the sampling frequency of the clock signal Clk2 can be 32KHz, 44.1KHz, 44KHz, 48KHz, 96KHz, 192KHz, or any frequency between 32KHz-192KHz, and the number of time intervals can be 6, 8, 12 or more.

Specifically, in the time intervals T1 and T2, audio information can be transmitted between the electronic devices 10 and 20 . More precisely, the audio information transmitted between the electronic devices 10 and 20 includes left channel information and right channel information. In the time interval T1, when the clock signal Clk2 is at the enable voltage level, the data signals DI/DO transmitted by the electronic devices 10 and 20 may include right channel information; in the time interval T2, the clock signal Clk2 is at the disable level When the voltage level is high, the data signal DI/DO transmitted by the electronic device 10, 20 may include left channel information, wherein the left channel information and the right channel information may be, for example, pulse-code modulation (PCM) 16-bit, 24-bit or 32-bit data.

Furthermore, during the time interval T3-T6, the electronic devices 10, 20 can transmit the writing information. More precisely, the writing information transmitted between the electronic devices 10 and 20 includes writing commands and writing data. In the time interval T3, the data signal DI/DO transmitted by the electronic device 10, 20 may include a write command; in the time interval T4-T6, the data signal DI/DO transmitted by the electronic device 10, 20 may include a write data .

In this embodiment, since the audio information transmitted between the electronic devices 10 and 20 only includes left channel information and right channel information, only two time intervals are required for transmission. In this way, the electronic system 1 and the electronic devices 10 and 20 can transmit audio information in the time intervals T1 and T2, and in other time intervals T3-T6 when no audio information is transmitted, the electronic system 1 and the electronic device 10 can , 20 can carry out the transmission of written information. Of course, the number of time intervals used for transmission between the electronic devices 10 and 20 can be adjusted or changed according to the compatibility of the interface circuits 12 and 22 and user requirements, so that the electronic devices 10 and 20 can be transmitted in less or less time. The number of more time intervals to transmit. According to the above, when transmitting audio information between the electronic devices 10 and 20, the electronic device 10 can simultaneously write to the memory 23 of the electronic device 20 in the form of online programming, so that the audio information transmitted between the electronic devices 10 and 20 Audio information can remain continuous and uninterrupted to provide users with a better experience.

FIG. 3 is a schematic block diagram of an electronic system 3 in an embodiment of the present invention. Electronic system 3 includes electronic devices 30 , 40 . The electronic device 30 includes a controller 31 , an interface circuit 32 , a connection port management circuit 33 , and connection ports 34 - 36 . The electronic device 40 includes a controller 41, an interface circuit 42, a memory 43, a memory controller 44, an audio processing circuit 45, an analog to digital converter (analog to digital converter, ADC) 46, a digital to analog converter (digital to analog converter) , DAC) 47.

Generally speaking, the controller 31, interface circuit 32, controller 41, interface circuit 42 and memory 43 in FIG. 3 are similar to the controller 11, interface circuit 12, controller 21, interface circuit 22 and memory 43 in FIG. 1 respectively. Memory 23, so please refer to the relevant paragraphs above for related descriptions, and will not repeat them here.

In the electronic device 30 , the controller 31 is also coupled to the port management circuit 33 , and is coupled to the ports 34 - 36 through the port management circuit 33 . The connection ports 34-36 can be the same or different connection ports for connecting to external devices and accessing data respectively. In some embodiments, the connection port 34 can be a universal serial bus (USB) connection port, the connection port 35 can be a network connection port, and the connection port 36 can be a memory card (secure digital memory card, SD card) ) port. In this way, the connection port 34 can be connected to, for example, a flash drive, a desktop computer, a notebook computer, a tablet computer or other electronic devices that can be connected through the USB connection port for data access. The connection port 35 can be connected to a network cable or a network connection device, and connected to the Internet (world wide web, WWW) through the network cable for data access. The connection port 36 can be connected to a memory card, for example, to access the data of the memory card. The port management circuit 33 is coupled between the controller 31 and each of the ports 34 - 36 , and the port management circuit 33 is responsible for signal transmission between the controller 31 and the ports 34 - 36 .

In the electronic device 40 , the controller 41 is coupled to the interface circuit 42 , the memory controller 44 and the audio processing circuit 45 . The controller 41 and the audio processing circuit 45 can process the encoding/decoding operation of the audio information, and transmit it to the audio device through the analog-to-digital converter 46 and the digital-to-analog converter 47 . The controller 41 can be coupled to the memory 43 through the memory controller 44 , and the controller 41 and the memory controller 44 can write into the memory 43 according to the write information.

In some implementations, the audio processing circuit 45 can be, for example, a mixer (mixer), which can perform audio mixing processing on the transmitted audio information. The memory 43 can store data of functions such as voice control, adjustment, or sound mixing. In this way, the audio processing circuit 45 in the electronic device 40 can perform mixing or other operations on the audio information by accessing the memory 43 .

Generally speaking, on the one hand, the electronic system 3 can transmit audio information (for example, the electronic device 30 receives audio information from the electronic device 40 , or the electronic device 30 sends audio information to the electronic device 40 ). On the other hand, the electronic system 3 can also obtain writing data from an external device through at least one of the connection ports 34-36, and through the controller 31 and the interface circuit 32 without interrupting the audio information transmission. , 42 for time-division multiplexing processing to write on-line programming to the memory 43 of the electronic device 40 . Therefore, through the overall configuration of the electronic system 3 and the electronic devices 30 , 40 , the function of online programming can be realized, which effectively improves the convenience of the system.

FIG. 4 is a flow chart of a transmission method according to Embodiment 1 of the present invention. The transmission method in FIG. 4 can be implemented by the electronic system 1 in FIG. 1 or the electronic system 3 in FIG. 3 . In step S40, the first electronic device and the second electronic device may be provided to transmit audio information between the first electronic device and the second electronic device. In step S41, when the audio information is transmitted between the first electronic device and the second electronic device, the second electronic device provides writing information to the first electronic device, so as to perform online programming on the first electronic device.

Please refer to the relevant paragraphs above for instructions on online programming with Electronic System 1 or Electronic System 3. But of course, those skilled in the art can make required changes or adjustments to the above-mentioned electronic devices 10 , 20 , 30 , 40 or electronic systems 1 , 3 according to different design concepts and user requirements. For example, taking the electronic system 1 of FIG. 1 as an example, although the above section only illustrates that the electronic device 10 is used as the master device to perform online programming on the slave device of the electronic device 20 (codec device), the present invention Not limited to this. The electronic device 20 can also be used as a master device to perform an online programming operation on the electronic device 10 as a slave device. That is to say, when the audio information is transmitted between the electronic devices 10 and 20, the electronic device 20 can provide writing information to the electronic device 10, so as to perform the memory (not shown in FIG. 1 ) of the electronic device 10. write.

To sum up, the electronic device, electronic system and transmission method of the present invention can effectively provide online programming of electronic devices when transmitting audio information through an interface circuit that supports time-division multiplexing mode in compliance with the inter-chip audio standard. Function. Therefore, while writing to the memory, the transmission of audio information can be kept continuously and uninterrupted, effectively providing users with a better user experience.

1, 3: Electronic system 10, 20, 30, 40: Electronics 11, 21, 31, 41: Controller 12, 22, 32, 42: interface circuit 23, 43: memory 33: Port management circuit 34～36: Connecting port 44: Memory controller 45: Audio processing circuit 46:Analog to digital converter 47:Digital to analog converter Clk1, Clk2: clock signal DI/DO: data signal F1: frame time S40, S41: steps T1～T6: time interval

FIG. 1 is a schematic block diagram of an electronic system in an embodiment of the present invention. FIG. 2 is a schematic diagram of waveforms of signals transmitted between the electronic devices of FIG. 1 . FIG. 3 is a schematic block diagram of an electronic system in an embodiment of the present invention. FIG. 4 is a flow chart of a transmission method according to Embodiment 1 of the present invention.

1: Electronic system

10, 20: Electronic devices

11, 21: Controller

12, 22: interface circuit

23: Memory

Claims (10)

An electronic device adapted to transmit an audio message with an external device, the electronic device comprising: an interface circuit coupled to the external device; and A controller, coupled to the interface circuit, the controller transmits the audio information with the external device through the interface circuit, wherein the controller provides a write information to the external device through the interface circuit, so that the interface circuit and the external device When the audio information is transmitted between the external devices, the controller performs in-system programming (ISP) on the external device according to the writing information. The electronic device as claimed in claim 1, wherein the communication between the interface circuit and the external device complies with an Inter-IC Sound (I ² S) standard. The electronic device according to claim 1, wherein the interface circuit supports a time-division multiplexing (TDM) mode. The electronic device as described in claim 1, wherein the electronic device communicates with the external device according to a first clock signal and a second clock signal, wherein the first clock signal distinguishes multiple frames Time, the second clock signal distinguishes a plurality of time intervals in each frame time. The electronic device as claimed in claim 4, wherein the audio information is transmitted between the interface circuit and the external device during at least one first time interval among the time intervals distinguished by the second clock signal, The write information is transmitted between the interface circuit and the external device during at least a second time interval among the time intervals. The electronic device according to claim 5, wherein the audio information includes a left channel information and a right channel information, and the write information includes a write command and a write data. An electronic system comprising: A first electronic device, comprising: a first interface circuit; a memory; and A first controller receives information from the first interface circuit to write into the memory; and A second electronic device, coupled to the first electronic device to transmit an audio message, the second electronic device includes: a second interface circuit coupled to the first interface circuit to transmit the audio information; and A second controller, coupled to the second interface circuit, the second controller transmits the audio information with the first electronic device through the second interface circuit, wherein the second controller provides a Writing information to the first controller, so that when the audio information is transmitted between the first interface circuit and the second interface circuit, the first controller writes information to the memory of the first electronic device according to the written information Perform in-line programming (in system programming, ISP). The electronic system according to claim 7, wherein the first electronic device and the second electronic device communicate according to a first clock signal and a second clock signal, wherein the first clock signal distinguishes A plurality of frame times, the second clock signal distinguishes a plurality of time intervals in each frame time. A method of transmission comprising: providing a first electronic device and a second electronic device for transmitting an audio message between the first electronic device and the second electronic device; and When the audio information is transmitted between the first electronic device and the second electronic device, the second electronic device provides a writing information to the first electronic device to perform on-line programming of the first electronic device (in system programming, ISP). The transmission method as described in claim 9, wherein the communication between the first electronic device and the second electronic device is based on a first clock signal and a second clock signal, wherein the first clock signal distinguishes A plurality of frame times, the second clock signal distinguishes a plurality of time intervals in each frame time.

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