CN2549655Y - Wireless devices sharing a single receive circuit - Google Patents

Abstract

The utility model is a wireless device that shares a single receiving circuit, comprising a receiving circuit, a microprocessor and a connection port; wherein: the receiving circuit transmits the received signal to the microprocessor for preliminary processing, and then transmits it to a computer through the connection port, and the microprocessor processes the data in a time-division multiplexing mode to process the peripheral devices that use the same transmission frequency signal; the receiver sequentially receives the clock signals sent by the transmitters of the peripheral devices, and processes the clock signals in a time-division multiplexing mode; since only a single receiving circuit is used, the utility model can greatly simplify the overall receiving circuit to reduce costs and avoid the loss of wasted channels.

Description

Wireless devices sharing a single receive circuit

technical field

The utility model relates to the technical field of radio reception, in particular to a wireless device sharing a single receiving circuit, the radio frequency (RF) signal receiver of which can process data in a time-division and multiplexing mode to process multiple signals using the same transmission frequency Peripherals.

Background technique

By the way, with the rapid development of science and technology and the improvement of people's requirements for the convenience of use, the peripheral equipment of the computer has gradually improved from the previous wired connection to the wireless transmission of signals. When users use these peripheral equipment, they can There is no need to be constrained by the signal line to achieve greater free use of space.

Generally speaking, wireless signals are roughly divided into infrared signals and radio frequency (RF) signals. Because infrared signals have a limitation that the transmitter must be aligned with its receiver, the receiver can receive the signal sent by the transmitter, so today's computer peripherals Most of the equipment uses radio frequency signals to transmit signals. Please refer to FIG. 1. Generally, in a conventional computer wireless device 1, its receiving circuit 11 and the transmitting circuit 13 on the peripheral equipment are on the same channel, so that the receiving circuit 11 can receive The signal transmitted by the transmitting circuit 13 is processed by a microprocessor 15 and then sent to the computer through a connection port 16. However, each computer has a plurality of peripheral devices, and each peripheral device has a plurality of peripheral devices. The transmitting circuit 13 has different frequency channels, so the device 1 must additionally be provided with a plurality of corresponding receiving circuits 11 to receive the signals of each peripheral device simultaneously, which not only increases the circuit complexity of the receiving circuit 11 of the device 1, but also makes the manufacturing The cost increases, and many channels are wasted.

Contents of the invention

In view of this, in order to improve the above-mentioned conventional shortcomings, a wireless device sharing a single receiving circuit of the present invention is proposed to achieve the purpose of reducing the circuit complexity of the receiving circuit, reducing manufacturing costs, and saving channels.

To achieve the above object, a wireless device sharing a single receiving circuit of the present invention includes a receiving circuit, a microprocessor and a connection port; wherein: the receiving circuit transmits the received signal to the microprocessor For preliminary processing, it is then transmitted to a computer through the connection port, and the microprocessor processes data in a time-division multiplexing mode to process a plurality of peripheral devices that use the same transmission frequency signal; the receiver receives the signals in sequence The clock signal sent by the transmitter of the peripheral device is processed in a time-division multiplex mode for use.

As an improvement, the clock signals sent by the transmitters of the peripheral devices of the present invention have the same channel and frequency, but different clock signals. The peripheral devices are a wireless keyboard, a wireless mouse, a wireless handheld game keyboard, a wireless handheld game joystick, a wireless digital keyboard or a wireless barcode machine.

As an improvement, the receiving circuit of the utility model is provided with an antenna which can strengthen the receiving signal of the receiving circuit.

As an improvement, the connection port of the present invention is composed of a USB port, a 1394 port or a PS/2 port.

Because the utility model only uses a single receiving circuit, the whole receiving circuit can be greatly simplified to reduce the cost and avoid the loss of wasteful channels.

Description of drawings

Figure 1 is a conventional block diagram;

Fig. 2 is a schematic block diagram of the utility model;

Fig. 3 is the clock signal schematic diagram of the present utility model;

Fig. 4 is the keyboard circuit diagram of the present utility model;

Fig. 5 is the mouse circuit diagram of the present utility model;

Fig. 6 is one of receiver circuit diagrams of the present utility model;

Fig. 7 is the second circuit diagram of the receiver of the present invention.

Detailed ways

The wireless device of the present utility model has only one set of radio frequency lines of the computer radio frequency (RF) signal receiver, and supports multiple peripheral devices at the same time, and the data that can be transmitted by each peripheral device is not continuous but fixed. The characteristics of the distance are used to increase the data transmission speed of the transmitter of the peripheral equipment. When the data transmission speed of the transmitter is fast enough, the user will not be aware that the peripheral equipment is in a state of time-division and multiplexing. To ensure that the receiving end can correctly receive the data of each peripheral device, and will not be occupied by a fixed peripheral device.

Please refer to Fig. 2, which is a schematic block diagram of a wireless device sharing a single receiving circuit of the present invention, its wireless device 2 adopts a radio frequency (RF) signal as a signal transmission, and the radio frequency (RF) signal of the wireless device 2 receives The device includes a receiving circuit 21, a microprocessor 23 (MCU) and a connection port 25, wherein the receiving circuit 21 can transmit the received signal to the microprocessor 23 for preliminary processing, and then pass through the The connection port 25 is transmitted to the computer 24, and the microprocessor 23 processes the radio frequency signals transmitted by a plurality of peripheral devices 31 using the same transmission frequency signals in the mode of time-division multiplexing processing data;

Through the composition of the above components, the radio frequency (RF) signal receiver can sequentially receive the signals sent by the transmitters of the peripheral devices 31 and process the signals in a time division multiplexing mode.

In this utility model, please refer to Figures 2 and 3, which are block schematic diagrams and clock signal schematic diagrams of the utility model. The signals sent by the transmitters of these peripheral devices 31 increase the speed of each signal, and Each signal is the same channel and frequency, but it can be distinguished by which peripheral device 31 is sent by different clock signals 32 and 33, so that the transmitters of each peripheral device 31 can be sequentially received by a single receiving circuit 21. The output clock signals 32, 33 enable the microprocessor 23 to simultaneously process the signals of these peripheral devices 31 in a time-division multiplexing mode.

In the present utility model, referring to Fig. 2 again, these peripheral devices 31 can be a wireless keyboard, a wireless mouse, a wireless handheld game keyboard, a wireless handheld game joystick, a wireless digital keyboard or a wireless barcode machine wait. Please refer to shown in Fig. 4, 5 simultaneously, Fig. 4 is the keyboard circuit diagram of the present utility model; Fig. 5 is the mouse circuit diagram of the present utility model;

In the present invention, please refer to FIG. 2 , the receiving circuit 21 may be provided with an antenna 211 to enhance the receiving signal of the receiving circuit 21 .

In the present invention, please refer to FIG. 2 again, the connection port 25 can be formed by a USB port, a 1394 port or a PS/2 port.

When the antenna 211 of the radio frequency (RF) signal receiver receives from the peripheral equipment 31, such as: when the frequency modulation (FSK) signal of the same frequency sent by the keyboard or the mouse, the microprocessor 23 will make this signal time-division multiple Manually process and convert the data into self-protocol specifications, and then send them to the microprocessor for internal processing, and then the microprocessor will transmit them to the computer 24 according to the PS/2 specification. Please refer to FIGS. 6 and 7 at the same time. FIG. 6 is one of the circuit diagrams of the receiver of the present invention; FIG. 7 is the second circuit diagram of the receiver of the present invention.

In this way, because only a single receiving circuit 21 is used, the present invention can greatly simplify the whole receiving circuit 21 to reduce the cost and avoid the loss of wasteful channels.

The above-described embodiment is only to illustrate the technical ideas and characteristics of the present utility model, and its purpose is to enable those who are familiar with this art to understand the content of the present utility model and implement it accordingly, and should not limit the patent scope of the present utility model with it , that is, all equivalent changes or modifications made according to the spirit disclosed in the utility model should still be covered within the scope of the claims of the utility model.

Claims (5)

1, a kind of wireless device of shared single receiving circuit is characterized in that: the receiver of this wireless device includes a receiving circuit, a microprocessor and a connectivity port; Wherein:

This receiving circuit is with the signal that is received, be sent to this microprocessor and do preliminary treatment, be sent to a computer by this connectivity port again, and this microprocessor is handled the peripheral equipment by a plurality of use same transmit frequency signals with the pattern of time division multiplexing processing data;

This receiver receives the clock signal that reflector sent out of these peripheral equipments in regular turn, and uses with these clock signals of time division multiplexing mode treatment.

2, the wireless device of shared single receiving circuit as claimed in claim 1 is characterized in that: the clock signal that reflector sent out of these peripheral equipments, each signal are same channel, frequency, but different clock pulse.

3, the wireless device of shared single receiving circuit as claimed in claim 1 is characterized in that: these peripheral equipments are a Wireless Keyboard, wireless mouse, wireless hand held recreation device keyboard, wireless hand held recreation device rocking bar, wireless digital keyboard or wireless bar code machine.

4, the wireless device of shared single receiving circuit as claimed in claim 1 is characterized in that: this receiving circuit is provided with the antenna that can strengthen the received signal of this receiving circuit.

5, the wireless device of shared single receiving circuit as claimed in claim 1 is characterized in that: this connectivity port is constituted by a USB port, 1394 ports or a PS/2 port.

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