JPH05175906A - Remote control signal transmitter - Google Patents

Abstract

PURPOSE:To enhance the operability of a remote controller. CONSTITUTION:A radiation angle of a remote control signal for a remote control signal transmitter 5 employing a radiation light of a light emitting diode used for the adjustment of sound volume and the recording and reproduction operation for a television receiver or a VTR 6 or the like in a wireless way as well as the ON/OFF of an electric device or the like from a remote location is set wider than that of a conventional transmitter, e.g. + or -3.5 deg. or over or omnidirectional. Or plural light emitting diodes 26-28 are provided so that the radiation angles differ from each other and a difference is given to a drive time of the light emitting diodes. Since the angle of remote control is widened, it is not required to care about the direction at the operation. Moreover, power consumption is constant through time difference drive.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control signal transmitter for remotely controlling a television, a cooler, and other electric equipment.

[0002]

2. Description of the Related Art In recent years, in the field of consumer equipment, development of multifunctional equipment has been promoted, and one of its functions is a remote control function.

A conventional remote control signal transmitter is constructed as a remote control signal transmitter 5 having an operation section 1, a transmission section 2, an LED 3 and a remote control key 4 as shown in FIG. 9, and for example, a television shown in FIG. In order to operate the device 6 by remote control, the TV device 6 to be operated has the directional characteristic of the LED 3
It must be within an opening angle of about 60 ° within (± 30 °).
The reason why the remote controller control angle is necessary is to prevent remote controller data from being transmitted to a device other than the device to be operated and the device not requiring control being operated.

[0004]

[Outer 1]

FIG. 11 is a sectional view showing a structure of a conventional example of the LED 3, 14 is a protective cap made of epoxy resin, and 15 is a protective cap.
Is Au wire, 16 is LED chip, 17 is Ag paste, 18 is parabola, 19 is comb, 20 is anode (+), 21 is cathode
(-).

Here, the emitted light from the LED chip 16 is
The parabola 18 enhances the directional characteristic and radiates.

[0007]

However, in recent years,
The number of remote control signal transmitters that can transmit device codes and data codes that instruct the increase or decrease of the TV channel number, volume, etc. has increased, and conversely, if the data codes do not match, control is impossible. The reason why it is necessary to specify the control device by its characteristics has disappeared.

With the advent of multifunctional remote control signal transmitters such as learning type remote controls or bar code remote controls,
You can operate multiple devices with one remote control signal transmitter, but each time you want to operate the device, you have to operate the remote control signal transmitter within the opening angle of about 60 degrees. ..

More recently, the number of devices that can be operated by a remote controller, such as televisions, VTRs, audio decks, air conditioners, microwave ovens, boomboxes, etc., has increased, and the number of small rooms such as studio apartments has increased.
In many cases, devices that you want to operate are placed at various angles in the space of one room, and even in that case, the inconvenience of having to almost face the remote control signal transmitter to the device to be operated each time. was there.

It is an object of the present invention to provide a remote control signal transmitter for eliminating the inconvenient function of the conventional remote control signal transmitter as described above.

[0011]

The present invention has the following objects.
The emission angle of the control signal is about 70 ° or more (Claim 1), and the light emitting diodes of the transmitter are driven with a time difference (Claim 2) by the remote control signal transmitter.

[0012]

With the above structure, the remote control signal transmitter does not need to indicate the direction of the equipment to be operated each time.
Remote control with high operation efficiency and less malfunction is possible.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a diagram showing an embodiment of claim 1.
The reference numerals are attached as in FIG. When the remote controller key 4 is pressed in this configuration, the LED 3 blinks and remote controller data is transmitted.

In this case, the LED 3 has directivity of ± 35 ° or more or nondirectional. As a result, the device to be operated can be operated without being within ± 30 ° of the opening angle from the remote control signal transmitter.

FIG. 2 shows the internal structure of the remote control signal transmitter, where 22 is a key matrix, 23 is a remote control transmission LSI,
Reference numeral 24 is an LED driver, and other reference numerals are the same as those in the previous figure.

In this configuration, first, when a key of the key matrix 22 of the operation unit 2 is pressed, the remote control transmission LSI 23 operates, desired control data is output, and the LED driver 24 outputs an optical signal by the LED 3 of the transmission unit 1. Sent to the device you want to control.

FIG. 3 shows a chip structure of the LED 3, which is composed of two conventional LED chips, and the reference numeral is the description of FIG.

FIG. 4 shows the overall structure of the LED 3,
Reference numeral 25 is an insulator, and the other symbols refer to the description up to the previous figure.

Here, the LED chip 16 is protected by the transparent epoxy resin 14, and the emitted light is emitted at a wide angle because the LED chip 16 has a double-sided structure.

FIG. 5 is a diagram showing the concept of a remote control signal transmitter in an embodiment of claim 2.

In FIG. 5, 26, 27 and 28 are respectively L
ED (A), LED (B), and LED (C), and also 29
Is a speaker (A), 30 is a speaker (B), and the other reference numerals are the same as those in the previous figures. It should be noted that the speakers (A) and (B) are assumed to receive audio signals from the main body of the television 6 in a wireless configuration.

In FIG. 5, first, the remote control key 4 of the operation unit 2 is shown.
By pressing the button, the LED (A) 26 of the transmission unit 1 blinks, remote control data is transmitted to the television 6, and the voice of the television can be heard. That is, even if the speaker of the TV 6 main body is made cordless by the wide-angle remote control signal transmitter, the remote control signal transmitter 5 is connected to the TV 6 main body, the speaker (A) 29, and the speaker (B) 30 each time. It is not necessary to press the remote control key 4 toward.

FIG. 6 shows the internal structure of the remote control signal transmitter, 31 is an LED driver (A) and 32 is an LED driver (B).
And other symbols are the same as the symbols up to the previous figure.

FIG. 7 is a diagram showing the output timing of the control signal. The output signal A is the output of the LED (A) 26 of FIG. 6, and the output signal B is the output of the LED (B) 27 and LED (C) 28. Is the output.

First, when the remote controller key 4 of the operation unit 1 is pressed, the remote controller transmitting LSI 23 operates and desired data is output. The output signal A is transmitted from the LED driver (A) 31 through the LED (A) 26 of the transmitter 1 to the device to be operated. Next, the output signal B is transmitted from the LED driver (B) 32 to the other device to be operated via the LED (B) 27 and the LED (C) 28 of the transmitter 1.

The output signal A shown in FIG. 7 is composed of, for example, a head pulse, a custom code, a data code, an inverted custom code, an inverted data code, and an end row. The output signal A is an LED driver.
When the (A) 31 is driven, it is output from the LED (A) 26. After that, the above-mentioned output signal B is output from the LED (B) 27 and the LED (C) 28 by driving the LED driver (B) 32.

The above-mentioned output signal B is also composed of, for example, a head pulse, a custom code, a data code, an inverted custom code, an inverted data code and an end row.
In the timing chart of FIG. 7, in the time difference diagram between the output signal A and the output signal B, for example, 78T (the dashi T is 0.42 m
s) is found.

Due to this driving time difference, the required electric power can be used only when necessary, which is effective for a remote control signal transmitter which is often supplied with power from a battery or the like.
At the same time, since all the LEDs do not blink, a large amount of current can be prevented from flowing at the same timing. This is L
This is an advantage that the device size can be reduced due to the SI design,
The device and remote control signal transmitter lead to cost reduction.

FIG. 8 is a schematic perspective view showing an example of a system to which the present invention is applied, including a remote control signal transmitter.

In FIG. 8, 33 is a room, 34 is a VTR, and 35.
Is an air conditioner, 36 is a rice cooker, 37 is a microwave oven, 38 is an audio deck, and the other reference numerals are the same as those in the previous figure.

In the system as shown in FIG. 8, it can be easily understood from the signal emission angle that the present invention can be operated without pointing the remote control signal transmitter 5 to devices arranged at various angles each time. Is.

In this system, the bar code remote controller can be used with the same bar code reading angle as
Do not worry about the angle between the remote control signal transmitter and the device you want to operate (no matter which angle the device you want to operate is located)
It has the advantage that it can be operated.

[0034]

As is apparent from the above detailed description, the present invention has the following effects.

Since the transmitter has a signal emission angle of about 70 ° or more, the multifunctional remote controller signal transmitter can be easily used in daily life.

Since the light emitting diode of the transmitter is driven with a time lag, it becomes a multifunctional remote control signal transmitter which is useful for daily life and consumes less power.

[Brief description of drawings]

FIG. 1 is a conceptual diagram of a remote control signal transmitter in an embodiment corresponding to claim 1 of the present invention.

FIG. 2 is also an internal configuration diagram of the remote control signal transmitter.

FIG. 3 is a configuration diagram of an LED chip inside the remote control signal transmitter.

FIG. 4 is a diagram showing an overall LED structure inside the remote control signal transmitter.

FIG. 5 is a conceptual diagram including a remote control signal transmitter according to an embodiment of claim 2 of the present invention.

FIG. 6 is likewise an internal configuration diagram of the remote control signal transmitter.

FIG. 7 is a data output timing chart of the remote control signal transmitter.

FIG. 8 is a schematic diagram of a system configuration including a remote control signal transmitter according to claims 1 and 2 of the present invention.

FIG. 9 is a system diagram including a conventional remote control signal transmitter.

FIG. 10 is a configuration diagram of an LED chip inside a conventional remote control signal transmitter.

FIG. 11 is an overall structural diagram of an LED inside a conventional remote control signal transmitter.

[Explanation of symbols]

1 ... Transmitting part, 2 ... Operation part, 3 ... LED, 4 ... Remote control key, 5 ... Remote control signal transmitter, 14 ... Protective cap (epoxy resin), 16 ... LED chip, 18 ... Parabola, 20 ... Anode, 21 ... Cathode, 22 ... Key matrix, 23 ... Remote control transmission LSI, 24 ... LED
Driver, 26, 27, 28 ... LED, 31, 32 ... LED driver.

Claims (2)

[Claims] 1. The remote control signal transmitter according to claim 1, wherein an emission angle of the optical signal is about 70 ° or more. 2. A remote control signal transmitter, wherein light emitting diodes are arranged so as to emit optical signals in a plurality of different angular directions, and the light emitting diodes are driven with a time difference.