JP3059302U - Wireless receiver circuit for portable computer - Google Patents

Abstract

(57) Abstract: A wireless receiving circuit for a personal computer (PC) not having a built-in wireless receiving circuit is provided. A wireless receiving circuit (200) for receiving wireless signals coupled to a peripheral device including a flexible electric cable for connection to a PC (100) is disclosed. The wireless receiving circuit 200 includes a wireless receiver 220 such as an infrared receiver for receiving a wireless signal, a wireless signal processing circuit 221 for converting a wireless signal into a digital signal, and a digital signal to a PC through a flexible cable. And an interface circuit 230 for transmission. Peripheral devices are connected to PC through flexible cable,
It is possible to easily adjust the position and the direction of the peripheral device so that the wireless signal can be received.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a wireless receiving circuit of a portable computer, and more particularly, to a wireless receiving circuit coupled to a peripheral circuit and connected to a personal computer (PC) through a flexible electric cable.

[0002]

[Prior art]

 Multimedia applications based on portable computers are popular tools for business presentations. The progress of the multimedia presentation is typically controlled by direct input from a portable computer keyboard or by using an infrared remote control with an infrared receiver integrated directly into the portable computer housing. During such multimedia presentations, speakers tend to keep their portable PCs close to the audience at all times, so that the audience can focus on the multimedia presentation and see and hear them.

[0003] However, most portable PCs do not have built-in wireless receiver circuitry, so most speakers must sit next to their portable PCs to make multimedia presentations. Even portable PCs with a built-in infrared wireless receiver still have one problem. Infrared receivers can only receive infrared signals from a certain angle. If the infrared signals generated by the remote controller are outside this fixed angle, the infrared receiver cannot receive these signals. Due to these constraints, the speaker will typically be presenting his multimedia presentation while standing within this fixed angle. In today's market, most infrared receivers are mounted in front of a portable computer facing the computer operator. This means that in order to control such multimedia applications, the speaker must always be in the middle of the audience. This is inconvenient and uncomfortable for many speakers.

[0004]

[Problems to be solved by the invention]

 Therefore, a first object of the present invention is to provide a wireless receiving circuit for a PC that does not have a built-in wireless receiving circuit. It is another object of the present invention to provide a wireless receiving circuit capable of easily changing the receiving angle without changing the direction of the attached PC.

[0005] Further, the present invention further provides a wireless receiving circuit that can be combined with existing peripheral devices to greatly reduce equipment costs and that does not require extra I / O ports of a portable computer. Aim.

[0006]

[Means for Solving the Problems]

 Briefly, in a preferred embodiment, the present invention relates to a wireless receiver circuit having a flexible electrical cable for connection to a personal computer (PC), comprising: (a) an infrared receiver for receiving wireless signals; (B) a radio signal processing circuit for converting a radio signal to a digital signal, (c) an interface circuit for transmitting the digital signal to the PC through a flexible cable, And (d) a peripheral circuit connected to the interface circuit for executing individual peripheral functions for the PC.

[0007]

[Effect of the invention]

 The present invention has an effect that a wireless receiving circuit can be provided as appropriate for a PC without a built-in wireless receiving circuit. Further, the present invention has another advantage that the receiving angle of the new wireless receiving circuit can be easily changed without changing the direction of the attached PC since the wireless receiving circuit is connected to the PC through the flexible cable. Has an effect.

Further, the present invention has another advantage in that the wireless receiving circuit can be combined with existing peripheral devices to greatly reduce the equipment cost and does not require extra I / O ports of a portable computer. . These and other objects and advantages of the present invention will become apparent to those skilled in the art from the following detailed description of the preferred embodiments, which are illustrated by various shapes and diagrams.

[0009]

[Embodiment of the invention]

 FIG. 1 is a block diagram showing a configuration of a wireless receiving circuit 200 connected to a personal computer (PC) 100 according to the present invention. The wireless receiving circuit 200 includes a wireless receiver 220 for receiving a wireless signal, a wireless signal processing circuit 221 for converting a wireless signal received from the wireless receiver 220 into a digital signal, and a digital signal transmitted to the PC 100. And an interface circuit 230 for transmission. Wireless receiver 220 may be an infrared receiver for receiving an infrared signal from an infrared remote controller. When the radio receiver 220 receives a radio signal generated from a remote controller (not shown), the received signal is processed by a radio signal processing circuit 221 and converted into a digital signal. The digital signal is transmitted to the PC 100.

Further, the wireless receiving circuit 200 includes a peripheral circuit 210 connected to the interface circuit 230 for executing individual peripheral functions such as a mouse, a joystick, or a keyboard function on the PC. Is done. The peripheral circuit 210 includes a peripheral signal generation circuit 211 for generating a peripheral signal by an end user, and a peripheral signal processing circuit 212 for converting a peripheral signal into a digital signal. These digital signals generated by the peripheral signal processing circuit 212 are also transmitted to the PC 100 by the interface circuit 230.

[0011] By incorporating the wireless receiving circuit into the peripheral circuit, the equipment cost of the hardware and software of the wireless receiving circuit is greatly reduced. Both of them can share the same software driver (not shown) with the same interface circuit 230 of the PC. If a hardware chip such as a DSP (digital signal processor) can provide both functions, the wireless signal processing circuit 221 and the peripheral signal processing circuit 212 can also be combined. In addition, in order to connect the wireless receiving circuit and the peripheral circuit, the PC 100 only needs to have one input / output port such as one serial port. This will make a lot of sense to most portable computer users, since many portable computers only have one serial port.

FIG. 2 shows a combination of a mouse 21 and a wireless receiving circuit 22 provided with a flexible electric cable 23 for connecting a PC. The wireless receiving circuit 22 is attached to the rear end of the mouse 21. Since the mouse 21 is connected to the PC via the flexible electric cable 23, the position and the direction of the mouse 21 can be easily changed, and the wireless receiving circuit 22 should always be directed to the speaker when performing the multimedia presentation. Can be done. In such a design, the speaker can always place the portable computer near the audience as long as the radio signal from the remote controller is strong enough to reach the radio receiving circuit 22.

For such a combination of a mouse and a wireless receiving circuit, the peripheral circuit 210 shown in FIG. 1 is configured to include several mechanical interfaces to convert physical movements of the mouse into digital signals. I do. The interface circuit 230 transmits a digital signal to the PC via a serial port when the PC is compatible with IBM (trademark of International Business Machine, a computer company in the United States).

FIG. 3 shows a combination of a keyboard 31 and a wireless receiving circuit 32 having a flexible electric cable 33 for connecting to a PC. The wireless receiving circuit 32 is attached to the right rear corner of the keyboard 31. Like the mouse 21 shown in FIG. 2, the keyboard 31 can be adjusted in its position and direction so as to face the position of the speaker.

For such a combination of a keyboard and a radio receiving circuit, the peripheral circuit 210 shown in FIG. 1 includes several mechanical interfaces and a matrix circuit for all the key cabs of the keyboard 31. Configured to convert each keystroke to a digital signal. Then, the interface circuit 230 transmits the digital signal to the PC via the keyboard port.

FIG. 4 shows a combination of a joystick 21 and a wireless receiving circuit 42 provided with a flexible electric cable 43 for connecting to a PC. The wireless receiving circuit 42 is attached to the rear end of the joystick 41. Like the mouse 21 shown in FIG. 2, the position and direction of the joystick 41 can also be adjusted to point to the position of the talker.

For such a combination of a joystick and a wireless receiving circuit, the peripheral circuit 210 shown in FIG. 1 is configured to include several mechanical interfaces for the joystick handle, so that all movements of the joystick handle are controlled. Convert to digital signal. Then, the interface circuit 230 transmits the digital signal to the PC via the game port.

A similar effect can be achieved by various modifications of the combinations shown in FIGS. The arrangement of the radio receiving circuit need not be limited to the inside of the peripheral device. One such example is shown in FIG. The wireless receiving circuit 52 is apart from the mouse 51. The wireless receiving circuit 52 and the mouse 51 are connected by a Y-type cable 53 for connecting to a PC. With such a combination, the mouse 51 can be used even when the wireless receiving circuit 52 is moved separately. Furthermore, the Y-cable connection allows one of the most important I / O ports for portable computer users to be shared between these two devices as before.

The above description is not meant to be limiting. Those skilled in the art will readily appreciate that many modifications and variations are possible based on the disclosure of the present invention. Therefore, it should be understood that the above disclosure is limited only by the scope described in the claims of the utility model registration.

[Brief description of the drawings]

FIG. 1 shows a personal computer (P) according to the present invention.
It is a block diagram showing a configuration of a wireless receiving circuit connected to C).

FIG. 2 is a view showing a mouse attached to the wireless receiving circuit according to the present invention;

FIG. 3 is a diagram illustrating a keyboard attached to the wireless receiving circuit according to the present invention;

FIG. 4 is a diagram showing a joystick attached to the wireless receiving circuit according to the present invention.

FIG. 5 is a diagram showing a mouse attached to the wireless reception circuit according to the present invention using a Y-type cable.

[Explanation of symbols]

 Reference Signs List 21 mouse 22 wireless receiving circuit 23 flexible electric cable 31 keyboard 32 wireless receiving circuit 33 flexible electric cable 41 joystick 42 wireless receiving circuit 43 flexible electric cable 51 mouse 52 wireless receiving circuit 53 Y-type cable 100 personal computer (PC) 200 Radio receiving circuit 210 Peripheral circuit 211 Peripheral signal generating circuit 212 Peripheral signal processing circuit 220 Radio receiver 221 Radio signal processing circuit 230 Interface circuit

Claims (10)

[Utility model registration claims] 1. A wireless receiving circuit having a flexible electric cable for connection to a personal computer (PC), comprising: (a) a wireless receiver for receiving a wireless signal; and (b) a digital signal for receiving the wireless signal. And (c) an interface circuit for transmitting the digital signal to the PC through a flexible cable. 2. The wireless receiving circuit according to claim 1, further comprising a peripheral circuit connected to said interface circuit for executing individual peripheral functions for said PC. 3. The wireless receiving circuit according to claim 2, wherein said peripheral circuit is a mouse circuit. 4. The wireless receiving circuit according to claim 2, wherein said peripheral circuit is a keyboard circuit. 5. The wireless receiving circuit according to claim 2, wherein the peripheral circuit is a joystick circuit. 6. The peripheral circuit includes a peripheral signal generating circuit for generating a peripheral signal, and a peripheral signal processing circuit for converting the peripheral signal into a digital signal. The wireless receiving circuit according to claim 2. 7. The wireless receiving circuit according to claim 1, wherein said wireless receiver is an infrared receiver. 8. A personal computer (PC), a peripheral circuit for executing a peripheral function for the PC,
(A) a radio receiver for receiving a radio signal; and (b) a radio signal processing for converting the radio signal into a digital signal. A wireless receiving circuit comprising: a circuit; and (c) an interface circuit for transmitting a digital signal to the PC through a flexible cable. 9. The wireless receiving circuit according to claim 8, wherein said wireless receiver is an infrared receiver. 10. The wireless receiving circuit according to claim 8, wherein said peripheral circuit is a mouse circuit.