JPH06165269A - Remote control device - Google Patents

Abstract

PURPOSE:To provide a remote control device for generating ID codes with many bits without increasing hardwares and not generating interference even when it is used in open-air for controlling a portable electronic equipment or the like. CONSTITUTION:In the remote control device provided with a microcomputer for transmitting the ID codes, an ID generation switch 6 is provided, the pressing time of the switch 6 is counted by a timer 9 inside the microcomputer 11 to be latched to a memory 10 and a value latched to the memory 10 is transmitted as an ID code value.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control device useful for portable small electronic equipment, and more particularly to improvement of a remote control device capable of transmitting an ID code.

[0002]

2. Description of the Related Art As a remote control device, a device for selecting infrared rays by using a digital code format and for performing operations such as turning on a power source is widely used in the world. As one of such digital code formats, SIRCS (Sark: Sony, Infrared Remote Control System) proposed by the present applicant is known. This circus code is a guide pulse 1 for identifying the start of transmission, which is arranged in time series as shown in FIG.
6 followed using 12 binary code bits starting from 2 ^0, in the first high-order 7 bits transmitted code and the command code 17 for identifying such which operation key is operated on the remote control transmitting device, after The lower 5 bits of "1" indicate a product category, for example, a custom code 1 for identifying a TV receiver, tape recorder, tuner, etc.
It is made up of eight.

When transmitting using such a transmission code, the lower 5 bits of 12 bits are assigned to the category code 18, but since the number of types as the code number is smaller than the number of products, other companies. When it is used in combination with a product, the category code 18 is duplicated, which causes a problem of causing interference between a plurality of receiving devices.

In order to eliminate such an adverse effect, JP-A-63-2
No. 6098 proposes a remote control device configured to transmit an ID code from the remote control transmission device side so as not to cause interference even if a plurality of electronic devices having the same category code exist on the receiver side. There is.

The one disclosed in the above-mentioned publication is provided with a plurality of ID code set keys for generating an ID code, and the ID code is set by operating the set keys.

[0006]

According to the publication described in the above-mentioned conventional configuration, IDs are formed by using switches for several bits.
To identify the code, it is possible to prevent interference to some extent when there are multiple devices from other companies indoors, but when operating a portable tape recorder outdoors, etc., a several-bit ID code. There is a high probability of duplication, and there is still a possibility of causing interference. Therefore, it becomes necessary to increase the number of bits.

However, in the case of increasing the number of bits, conventionally, a plurality of switches are provided on the housing side of a small remote controller transmitting device in order to set an ID code, which causes a problem in design and The setting of the ID code for each bit has a problem that the hardware (the number of switches) increases and the user's operation becomes complicated.

The present invention has been made to solve the above problems, and an object of the present invention is to generate an ID code having a large number of bits without increasing the hardware, and to carry out portable electronic equipment. It is an object of the present invention to provide a remote control device that can generate ID code easily without causing interference even when used outdoors for controlling the above.

[0009]

As shown in FIG. 1, the remote control device of the present invention includes an information processing means 11 configured to transmit an ID code from a transmission device of a remote controller. In a remote control device having the same, an ID code generating means 6 for generating an ID code, a timer 9 for detecting an operation start or operation end time of the ID code generating means 6, and a counting means for counting the time of the timer 9 11, a latch means 7 for latching the end of counting by the counting means 11, and a memory means 10 for storing the end value of the latch means 7 as an ID value.

[0010]

In the memory control device of the present invention, when the switch 6 of the ID code generating means is pressed, the timer 9 starts counting and the information processing means (hereinafter referred to as CPU) 11 is I
It is judged whether or not the switch 6 for generating the D code is separated and contacted, and if the switch 6 is separated and connected, the time is latched and this final value is stored in the memory 9, so that the user is very easy. The ID code with a large number of bits can be set by operation, and only one ID code generation switch on the transmitter side of the controller (hereinafter referred to as the commander) is required, which simplifies the hardware and allows multiple devices of the same format. Even with remote control operation, a commander with no interference can be obtained.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The control device of the present invention will be described in detail below with reference to FIGS. FIG. 1 shows an overall functional system diagram of a commander of a control device of the present invention.

In FIG. 1, reference numeral 1 denotes a switch group for performing operations corresponding to a remote control mode such as channel selection, volume adjustment, power-on and power-off with a key matrix, which is not shown on the panel of a commander casing. They are arranged in a predetermined shape. Then, a key input in a predetermined remote control mode is input to the key scan circuit 2 in the CPU 11 forming the remote control circuit.

The key scan circuit 2 is a key matrix 1.
When a key input is supplied from, a key matrix scan signal is sequentially output to determine which output signal is input to which key matrix, and the data setting circuit 3 generates a data code corresponding to the key.

The data code is decoded by a data setting circuit 3 such as a data encoder and modulated at a predetermined frequency via a waveform generating circuit 4 and a waveform output circuit 5, and the data code is supplied to an infrared light emitting diode and received by a remote controller. Sent to the device side.

The ID code generating means for generating the ID code is composed of one pressing type switch 6 whose one end is grounded, and the shape of the knob of the pressing portion may be configured as shown in FIGS. 2A and 2B. And That is, FIG. 2A is a plan view of the main part, and FIG. 2B is a side sectional view of the main part.
The knob 13 is slidably arranged in a through hole 14 formed in a part of the housing 2, and in a normal state, as shown in FIG. 2B, in order to prevent malfunction, from the upper surface of the housing 12 to the upper surface of the knob 13. The height H of the knob 13 is reduced to form a recess 15 in the center of the knob 13,
The switch 1 can be turned “on” by pressing the concave portion 15 with a pen tip or the like.

When such an ID generating switch 6 is turned "on", the CPU 11 operates the timer 9 via the switch scan circuit 8 for the switch input. That is, the time from when the ID generation switch 6 is pressed to when the ID generation switch 6 is separated and contacted
The counting means (counter) in 11 counts.

The ID generation value is fixed by using the latch circuit 7 of the timer when the ID generation switch 6 is released.
The value of the timer 9 at that time is stored in the memory 10 as an ID. The ID data is supplied from the memory 10 to the data setting circuit 3, and the data setting circuit 3 sets the guide pulse 16, the command code 17, the category code 18, and the ID code 19 in time series as shown in FIG. Then, the modulated wave is transmitted to the receiving device via the waveform output circuit 5 and the infrared light emitting diode.

FIG. 3 shows a flow chart of ID code generation. The timer 9 of the CPU 11 starts counting at the first step ST ₁ of the timing when the ID generation switch 6 is pressed.

In the next second step ST ₂ , the CPU 11 judges whether or not the ID generation switch 6 has been separated and contacted, and N
If it is O, it is returned to the beginning of the second step ST ₂ , but Y
If it is ES, the process proceeds to the third step ST ₃ to perform the timer latch, and the final value of the timer count is latched.

In the next fourth step ST ₄ , the value latched by the timer 9 is stored in the memory 10, supplied to the data setting circuit 3 and returned, and the same flow as described above is repeated to determine the ID code. To be done.

Further, the timer 10 starts counting from an initial value 0, and when a digit overflows, counting is repeated from 0 again.

When the ID code is determined in this way, FIG.
Is supplied to the data setting circuit 3 and is transmitted in the format with the ID shown in FIG.

With the above configuration, the ID generation switch 6 is pressed for a predetermined time so that the ID set by the user takes a random value.

For example, with a 15-bit ID, when the clock count period of the timer 9 is 16.67 μs, the user is instructed to press the ID generation switch for 1 second or longer. This one second is a value set so that the generated ID takes a random value, and the time for the counter to make one cycle of 15 bits can be calculated as follows. 32768 (2 ¹⁵ ) × 16.67 μs≈0.546 seconds Therefore, if the ID generation switch 6 is continuously pressed for 1 second, it is considered that the counter value is fully cycled and a random ID value can be generated.

When the number of bits of the ID code is 15 bits or more when the random ID value is calculated by the above-mentioned method, the user is required to switch the ID generation switch so that the count satisfies the time of fully circulating 15 bits or more. It goes without saying that the time for pressing 6 is set.

As described above, basically, the user can generate a random ID value by setting the pressing time for pressing the ID generating switch 6, but since the user presses for exactly the same time, The ID can be combined with a function having randomness that has nothing to do with.

For example, the product of the number of times the commander CPU has entered the stop mode, the sum, or the like is calculated. This stop mode is a mode in which a part of the program is stopped while the oscillation of the main clock is stopped in order to reduce power consumption when the commander is not used, and is naturally a function that the CPU 11 of the commander should have. In addition, it is possible to appropriately select a device having such a function.

As described above, it is necessary to register the ID code transmitted on the commander side on the receiver side of the remote controller (for example, a VCR or the like with a built-in portable camera, hereinafter referred to as a camcorder). For this registration method, set the receiving device side to "I
There may be a case where the commander kaira ID-added data is transmitted in that state in the "D registration mode", and a case where an ID-added registration-only command is transmitted and the like. The following 2-3 examples will be described. (B) Send the registration command in a bucket. (B) Register command to circus (SI
RCS). (C) A registration command is transmitted as a circus with an ID. Etc.

First, in the case of (a), the camcorder of the transmission device is set to the ID registration mode, and the bucket is used by the commander, and when transmitting a registration command with an ID, an ID registration key is provided on the commander side. By pressing the registration key, the bucket with ID is transmitted to the cam code side.

FIG. 5 shows an example of the transmission format of this bucket with ID. In FIG. 5, 20 is an ID consisting of 3 frames.
It is a start word and is a code other than the timer reserved time setting. Next, the ID registration frame 21 indicates the ID registration mode. The next 22 is an ID code indicating the ID value set by the user. Two frames are sent, Next, the check frame 23 and the end frame 24 are transmitted to complete the ID registration. In this case, the transmission time until the ID registration on the camcorder side is 8 frames × 45 ms = 0.36 seconds, which is relatively long and requires a registration key.

According to the ID registration method of (b), the registration key is required, but the ID registration can be performed by shortening the transmission time.

Also in the case of (b), the camcorder is in the ID registration mode, and the commander issues a registration command with an ID by a circus that is not a bucket by pressing the registration key provided on the commander side. As shown in FIG. In this case, the registration command ID with ID
_{1 to} ID ₃ are transmitted in 3 frames, and the transmission time in this case can be shortened to 3 frames × 45 ms = 0.135 seconds.

Further, according to the registration method as described in (c), it is possible to transmit in a short time without the need for a registration key.

That is, the camcorder side is in the ID registration mode, and instead of the ID-attached registration command 22 in the format shown in FIG. 6, the ID-attached normal command 23 (any command is acceptable) is transmitted. That is, by transmitting the circus with ID, the ID can be registered in the camcorder without requiring the registration key on the commander side. As in the case of FIG. 6, if the format at this time is a normal ID of 3 frames, transmission is possible with a transmission time of 3 frames × 45 ms = 0.135 seconds.

When the ID registration on the transmitter side, eg, the camcorder side, is completed as described above, it is determined whether the ID code 19 transmitted from the commander side matches the registered ID, and other command codes are determined. The operation operation intended by the user is performed by breaking 17 or the category code 18.

Further, the transmission data from the conventional commander is transmitted in time series so as to have a predetermined period τ as shown in FIG. 9. If an ID code as shown in FIG. In the coded transmission, since the transmission is performed in the cycle of the predetermined cycle τ like the conventional format as shown in FIG. 9, the data amount of the ID code 19 added after the category code 18 is limited.

Therefore, in this example, the ID code transmission is divided into several frames and transmitted so that the data length of the ID code is not limited so much.

For example, when transmitting 15-bit ID-added data, as shown in FIG. 7, ID ₁ code 19a, ID ₂ code 19b, and ID ₃ code 19c are displayed every 5 bits.
And send it in time series.

In this case, the problems are ID _{1 to} ID ₃
The order of the codes 19a to 19c is to be determined by using the category code 18. For example, if there is a category called VTR 1, 2, 3 then VT
R1 and ID ₁ code 19a, VTR2 and ID ₂ code 1
It is possible to determine the order of the category code 18 and the ID code as 9b ....

According to the remote control device of the present invention, the CPU 11 and one ID generation switch 6 are used to generate an ID code, so that the user can easily generate an ID having a large number of bits.
It is possible to set the code, and even if there is no increase in hardware and there are a plurality of electronic devices of the same format, remote control can be performed without interference. Further, it is possible to obtain a remote control device having features such that the user can easily change the same ID code.

[0041]

According to the present invention, an ID code having a large number of bits can be generated without increasing the hardware, and even if it is used outdoors for controlling a portable electronic device or the like, it does not cause interference and is simple. A remote control device capable of generating an ID code is obtained.

[Brief description of drawings]

FIG. 1 is a system diagram showing an embodiment of a remote control device of the present invention.

[FIG. 2] I used in the remote control device of the present invention
It is the top view and the side sectional view showing one example of a D generation switch.

FIG. 3 is a flowchart of ID generation of the remote control device of the present invention.

[Fig. 4] I used in the remote control device of the present invention
It is a format diagram of a transmission code with D.

FIG. 5: I used in the remote control device of the present invention
It is a figure which shows one Example of the format of the transmission code at the time of D registration.

[FIG. 6] I used in the remote control device of the present invention
It is a figure which shows the other Example of the format of the transmission code at the time of D registration.

FIG. 7 is a transmission state diagram of a code format with an ID in the remote control device of the present invention.

FIG. 8 is a transmission code format of a conventional remote controller device.

FIG. 9 is a transmission state diagram of a format of a conventional remote controller device.

[Explanation of symbols]

 1 key matrix 2 key scan circuit 3 data setting circuit 6 ID generation switch 8 switch scan circuit 7 timer latch circuit 9 timer 10 memory 11 CPU

Claims (4)

[Claims] 1. A remote controller transmission device I
In a remote control device having an information processing means adapted to transmit a D code, an ID code generating means for generating the ID code, and a timer for detecting an operation start or operation end time of the ID code generating means. And counting means for counting the time of the timer, latch means for latching the end of counting by the counting means, and memory means for storing the end value of the latch means as an ID value. Remote control device. 2. The counting means counts during the operation of the ID code generating means, and the latch means latches the count value when the operation of the ID code generating means is stopped. The remote control device according to claim 1, which is characterized in that. 3. The remote control device according to claim 1, wherein the receiving device to which the ID code is transmitted from the transmitting device of the remote controller is a portable electronic device. 4. The remote control device according to claim 1, wherein the ID code generating means is composed of a push button, and an upper surface of the push button is arranged at a position lower than a casing surface of the transmitter of the remote controller.