JPH0638199U - A lamp device for the Christmas tree that flashes in time with the surrounding music - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To provide a lamp device for a Christmas tree, which is attached to the Christmas tree and can perform a blinking operation by synchronizing the lamp with surrounding music. [Configuration] A PLL circuit equipped with a buffer amplifier, a lock state detection circuit, a time constant circuit connected to the PLL circuit, an output circuit connected to the time constant circuit, and a lamp lit by the output of this circuit as one channel , The input end of each channel is formed at one signal input point, the electric music signal is input to this input point, and the free-running frequency of the PLL circuit of each channel and the width of the capture range are Are set in advance so that each PLL circuit is in a frequency distribution state that does not overlap and is in the audible frequency band, and each PLL circuit is set in a lock state, so that the output signal from each lock state detection circuit The output circuit is driven by the stable signal from the constant circuit, and the Christmas tree lamp blinks.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is, for example, a low-frequency sound such as a drum, a high-frequency sound such as a cymbal, or a singing voice among all frequency components included in music that is being played or broadcast. The present invention relates to a lamp device for a Christmas tree in which a lamp attached to a Christmas tree is flashed in synchronization with the surrounding music in accordance with changes in the above.

[0002]

[Prior art]

 A conventional flashing lamp device for a Christmas tree, for example, as shown in FIG. 4, amplifies a music signal generated by a melody IC 31 with an amplifier 32, and outputs a sound such as a small speaker built in the lamp flashing device. While the music is flowing from the body 33 to the outside, the above-mentioned amplified music signal is supplied to the detection block 34 for detection, and the time constant circuit 35 connected to this detection block 34 causes the pitch of the sound. The frequency component is removed to form a choppy music signal, and only the timings of the notes of the chopped music signal are extracted and supplied to the output circuit 36 to cause the Christmas tree lamp 37 to blink. There are many things that have been done. In FIG. 4, 38 is a power supply block including an AC / DC inverter, and 39 is a commercial power supply plug of the block.

In the conventional blinking lamp device for a Christmas tree shown in FIG. 4, the melody IC31 is used when the melody IC31 generates a sound according to the music information written in the ROM therein. Since the distinction between notes (sounds) and notes (sounds), which is a feature of the Romedi IC31, is relatively prominent, a lighting signal for a Christmas tree lamp can be formed with an extremely simple circuit configuration. This is because the timing of the required note can be extracted.

However, the conventional device using the melody IC31 has a drawback in that the Christmas tree lamp 37 can be blinked only by the specific music written in the melody IC31. Even if the melody IC31 contains a plurality of songs, the number of songs that can be written is about 10 at most. Therefore, the lamp 37 for the Christmas tree uses the lamp of 10 songs repeatedly supplied. Since 37 is blinked, there is a problem that it becomes easy to get used to it in a short time and loses its interest, and it is easy to get tired. Further, in the blinking of the lights for the Christmas tree using the melody IC31 as described above, for example, about 30 light bulbs are blinking all at once, which is simple in combination with the fact that the music is constant. I feel that I can only feel the change, and in this respect too, there is a lack of interest. In this respect, even if 10 lamps are sequentially turned on by using, for example, a digital IC or the like, as in the above case, the lamps simply blink regularly, which is not interesting.

[0005]

[Problems to be solved by the device]

 In view of the present state of the flashing lamp device for the Christmas tree as described above, the present invention is not a type that blinks only in response to the specific music stored therein, but rather the type of ambient lights flowing to the place where the Christmas tree is installed. It is an object of the present invention to provide a lamp device for a Christmas tree capable of picking up a sound caused by music or the like and causing a lamp provided in the tree to perform a blinking operation in synchronization with a picked up ambient sound. Is.

[0006]

[Means for Solving the Problems]

 One configuration of the present invention made for the purpose of solving the above-mentioned problems is to provide a bandpass filter that passes only a predetermined frequency that is arbitrarily set in advance, and an amplifier that is connected to the filter and amplifies the filter output. , A detection circuit connected to the amplifier for extracting its DC component, a time constant circuit connected to the detection circuit for stabilizing the output voltage from the detection circuit based on the set frequency component of the filter, and the time constant circuit A plurality of channels, each of which is connected to the voltage comparison circuit and a lamp which is connected to the comparison circuit and is lit by the output of the circuit, are provided as one channel, and the input ends of the bandpass filters in each channel are combined. Are formed at one signal input point, and an electrical music signal from an audio device is input to this input point. , The respective pass frequencies of the band-pass filter of each channel are set in advance so that they have center frequency distributions that basically do not overlap each other in the audible frequency band. It is characterized in that each output circuit is driven by the output of each voltage comparison circuit obtained by the music signal of each band and the lamp of each channel is turned on.

Another configuration of the present invention, which is intended to solve the problem of the present invention more prominently in place of the above configuration, includes a buffer amplifier and a digital output signal connected to the buffer amplifier. A PLL circuit having a lock state detection circuit that generates a time constant circuit, a time constant circuit connected to the PLL circuit, an output circuit connected to the time constant circuit, and a light output by the circuit connected to the output circuit. Lamps are provided as one channel, and the input ends of the buffer amplifiers for each channel are combined to form a single signal input point, at which electrical music is output from an audio device. A signal is input, and the free-running frequency of each PLL circuit of each channel and the width of the capture range are determined by each PLL. The frequency distribution is basically non-overlapping in the circuit, and it is arbitrarily preset so that it is within the human audible frequency band, and is arbitrarily set among all frequency components constituting the music signal. By setting each of the PLL circuits to lock only in a specific frequency range corresponding to each width of each of the capture ranges, the lock state provided in each of the PLL circuits is set. It is characterized in that each output circuit is driven by a stable signal obtained by integrating the output signal from the detection circuit in each of the time constant circuits to turn on the lamp of each channel.

[0008]

【Example】

 Next, an example of implementation of the device of the present invention will be described with reference to FIG. FIG. 1 is a functional block diagram showing an example of the device of the present invention in which a lamp attached to a Christmas tree is made to blink in response to a frequency such as ambient sound. In FIG. 1, 20L is a low pass filter, 21 is an amplifier, 22 is a detection circuit, 23 is a time constant circuit, 24 is a voltage comparison circuit, 25 is a reference set voltage of the voltage comparison circuit 24, 26 is an output circuit, 27 is a lamp for a Christmas tree, which constitutes a functional block of one channel corresponding to a certain band sound, in this case, a low frequency. Thus, in the figure, 20L, 20H, 20B, and 20B 'are all bandpass filters, but the frequency bands through which all the filters pass are different. Then, each of the filters 20B, 20B ', 20H has the same functional block as that of the above-mentioned one channel on the subsequent stage side, and has a functional block for blinking the lamp 27 corresponding to each pass band frequency. . Therefore, the same reference numerals in the drawings indicate the same functional blocks. In is an input point of the electric music signal.

In the device of the present invention shown in FIG. 1, when an electric music signal of a music arbitrarily selected from the audio equipment Ad or the like is applied to the input point In, the signal is a low pass filter 20L, The signals are transmitted in parallel to the band-pass filters 20B and 20B 'and the high-pass filter 20H, each having a different pass band, and are distinguished by the respective frequency bands set respectively for the filters 20H to 20L. At this time, the initially input music signal is attenuated by the AC resistance component of the LCR which is a constituent element of each filter 20H to 20L, so that it is connected to each of the filters 20L, 20B, 20B ', and 20H. The amplifier 21 amplifies the signal. Then, the output of each amplifier 21 is passed through each detection circuit 22 to be a DC component, and converted to a DC voltage level by each time constant circuit 23 in the subsequent stage.

In each time constant circuit 23, as the frequency of the electric music signal applied to the input point In approaches the respective center frequencies set in the filters 20L to 20H in the previous stage, the output of each circuit 23 The voltage level rises. In other words, if there is a frequency close to the center frequency of each of the filters 20L to 20H among all the frequency components included in the music applied to the input point In, each of the filters 20L to 20H It is shown that the output voltage of the time constant circuit 23 is stabilized and rises. Then, the output voltage of each time constant circuit 23 is input to each voltage comparison circuit 24 at the next stage and compared with a preset reference voltage 25, and when the output voltage exceeds the reference voltage, it is applicable. The output circuit 25 is operated to turn on the Christmas tree lamp 27 connected to the output circuit 26. When the output circuit 26 is not activated, the lamp 27 is off.

Therefore, according to the above-described example of the device of the present invention, the center frequency of each of the filters 20L to 20H of each channel is set to the frequency band of the sound of the drum or cymbal, for example. As a result, the lamp 27 of each channel blinks in accordance with the sound of the drum or cymbal. If the filters 20 L to 20 H used here are general-purpose and have a characteristic of about -6 dB / oct, provided that the lamp 27 can be surely blinked, the human audible frequency Since the range (about 20Hz to 20KHz) can be divided into, for example, about 3 divisions, that is, about 3 channels, the blinking state of the lamp 27 provided corresponding to each channel makes the sound of the music visually delicate. The delicate feeling of flashing in sync with is slightly less. In order to improve this point, the amplification factor of each amplifier 21 is increased, the accuracy of each voltage comparison circuit 24 is increased, and each band filter 20L to 20H having a substantial minus 18 dB / oct characteristic is used to improve the audibility. The frequency range may be divided into about 5 parts. By doing so, it is possible to realize the blinking operation of the lamp corresponding to the sound of music more finely. In the device of the present invention of the above-mentioned embodiment, since the lamp for the christmas tree can be operated to blink according to the frequency band of the music, a bimetal contact is incorporated in the conventional lamp, and the blinking is simply done by this action. This makes it possible to achieve a blinking state that is far more interesting than blinking the lamp. As the lamp 27 in the above-mentioned embodiment, any light emitting body can be used as long as it can emit visible light regardless of its light emitting method. In this case, it goes without saying that the output circuit 26 has a circuit configuration corresponding to the light emitting system of the lamp 27.

In the above embodiment, at least one Christmas tree lamp 27 for flashing in the device of the present invention can be provided for each channel, but normally, or preferably, a plurality of Christmas lamps 27 are provided for each channel. Each output circuit 26 is formed so that the lamps 27 can be connected to the output circuit 26 of each channel in series or in parallel. Alternatively, it is also possible to form an output circuit 26 for directly opening and closing the commercial power source by using a triac or the like, and connect and use a conventional tree lamp as it is. The plurality of lamps 27 in each channel change colors for each channel, that is, a plurality of lamps of the same color can be provided in a certain channel, or a plurality of lamps of the same color can be connected in the same channel. . Which of the lamp colors is used is arbitrary. In any case, if the audible frequency band included in the music can be further subdivided and a large number of Christmas tree lamps can be made to blink according to the subdivided frequency bands, the above-mentioned interests will be fulfilled. The blinking lights for the Christmas tree lamps are expected to become even more attractive. Further, even if a conventional bimetal tree lamp is connected to the lamp device of the present invention, the lamp extinguishing control of the lamp is performed on average before the bimetal operates, so that the conventional bimetal tree lamp is used. Can be used as is without modification.

Therefore, as a result of earnest studies by the inventors of the present invention, in practice, the audible wave number range (about 20 Hz to 20 KHz) of human beings is set on condition that the lamp for the Christmas tree can be surely blinked. , For example, it can be divided into about 10 channels, and individual lamps in each channel can be made to perform a sharp blinking operation, while the circuit configuration is simple with a reduced number of actual parts. In addition, since it was possible to complete a blinking lamp device for a Christmas tree, which is capable of performing a blinking operation according to an arbitrary music (sound frequency) at low cost, next, with reference to FIGS. Will be explained.

In FIG. 2, 10 is a buffer amplifier, 11 is a PLL circuit, and this PLL circuit 11 connects the output terminal of the buffer amplifier 10 to the input terminal of the phase comparator 11a as shown in FIG. A lock state detection circuit 11 d for detecting that 11 is in a lock state is provided. Reference numeral 12 is a time constant circuit connected to the PLL circuit 11, which integrates the lock state detection output signal detected by the lock state detection circuit 11d to form a voltage level signal and outputs it to the next stage circuit. Reference numeral 13 is an output circuit connected to the time constant circuit 12 and driven by an output signal of the circuit 12, and 14 is a Christmas tree lamp connected to the output circuit 13, which is driven by the output circuit 13. Can be turned on. Also in the device of the present invention of this embodiment, any lamp can be used for the lamp 14 as long as it can emit a visible light beam, regardless of its light emitting method, as in the previous embodiment. is there. As the lamp 14, for example, not only an incandescent lamp but also a discharge tube such as a neon sine tube or a fluorescent lamp tube, or a light emitting body such as an LED can be used. Further, it goes without saying that the output circuit 13 has a circuit configuration corresponding to the light emitting system of the lamp 14. Furthermore, even if a conventional bimetal tree lamp is connected to the lamp device of the present invention, the extinguishing control of the lamp is performed evenly before the bimetal is activated. It can be used as is without modification.

In another example of the device of the present invention shown in FIG. 2, the function block from the buffer circuit 10 to the lamp 14 causes the audible frequency band to be divided into, for example, a 10-channel lamp for a specific frequency. Form as a blinking block LB. Therefore, in order to construct a device that blinks, for example, 10 sets of lamps for each specific frequency or range within 10 divisions of the audible frequency band of a music signal, the above lamp blinking is used. A total of 10 channels of block LB will be installed.

In the device of the present invention shown in FIG. 2, for convenience of description and drawing display, the blinking of the middle portion is omitted and the lamp blinking block LB shows blocks LB and LB ₂ for four channels. , LB ₃ and LB ₁₀ . Therefore, the same reference numerals in FIG. 2 are the same functional blocks. In the device of FIG. 2 also, the input ends of the buffer amplifiers 10 in each of the above blinking blocks are combined to form one signal input point In, and an electric music signal by an audio device Ad or the like is formed at this input point In. Is input, but this point is the same as in the previous embodiment.

In another example of the device of the present invention described above, in the audible frequency band (about 20 Hz to 20 KHz) included in the music signal input to the signal input point In, in principle, the audio signals are divided so that they do not overlap each other. The flash lamps 14 for the respective christmas masses of the respective lamp flashing blocks LB to LB ₁₀ are individually controlled to flash in accordance with the range of the above-mentioned frequency, and this point will be described below.

In the device of the present invention shown in FIG. 2, in each PLL circuit 11 shown in FIG. 3 provided in each lamp blinking block LB to LB ₁₀ , each voltage controlled oscillator 11b (hereinafter, referred to as VCO) has its own device. The running frequency f _{2 is set} to, for example, 100 Hz, 500 Hz, 1 KHz, 2 KHz, 4 KHz, 6 KHz, 8 KHz, 15 KHz, 18 KHz, and a capture range for each free running frequency is set in each PLL circuit. It should be noted that each capture range is set as small as possible and adjusted so that the frequency ranges in which the PLL circuits operate do not overlap. The width of the capture range is adjusted by adjusting the level of the control voltage V ₂ of the VCO 11b using a variable resistor or changing the oscillation characteristic of the VCO 11b. In FIG. 3, 11a is a phase comparator for comparing the phase of the input frequency f ₁ and the output frequency f ₂ of VCO11b music signal to be input from the buffer amplifier 10 in real time, 11c Le - in loop filter, a phase comparator The output V ₁ of 11a is integrated to generate the positive and negative output voltages V ₂ of the DC component. This output voltage V ₂ becomes the control voltage of VCO 11 b. Incidentally, C ₁ and R ₁ are a capacitor and a resistance included in the VCO 11b.

The PLL circuit 11 shown in FIG. 3 is controlled by the output V _{2 of the} loop filter 11c so that its VCO 11b follows the input frequency f ₁ of the phase comparator 11a in the locked state. If the input frequency f ₁ of the comparator 11a is out of the lock range, the follow-up operation cannot be performed. That is, the output V _{2 of the} loop filter 11c is not generated.

Therefore, if it is detected whether or not the output V _{2 of the} loop filter 11c is present, it is possible to detect whether the PLL circuit 11 is in the locked state or the unlocked state. Reference numeral 11d denotes a lock state detection circuit attached to each PLL circuit 11. The lock state of each PLL circuit 11 is detected by the output of this circuit 11d, and this detection signal is input to each time constant circuit 12.

Thus, the VCO 11b of each PLL circuit 11 in the lamp blinking blocks LB to LB ₁₀ of each channel is preset with a free-running frequency and a capture range that are different within the audible frequency band. Therefore, the detection of the lock state of the PLL circuit 11 of the lamp blinking blocks LB to LB ₁₀ of each channel is detected in different frequency ranges. In this way, when the lock state is detected in the frequency range different for each PLL circuit 11 in each lamp blinking block, the output signal is integrated in each time constant circuit 12, and this integrated signal is integrated. These signals drive the respective output circuits 13 to individually light the lamps 14 of the respective channels.

As described above, the lighting of the lamp 14 of each channel is considered when the PLL circuit 11 in each of the lamp blinking blocks LB to LB ₁₀ is in the locked state. The channel lamp 14 is not lit and is extinguished.

Then, the same music signal from the audio equipment Ad or the like is input to each of the lamp blinking blocks LB to LB ₁₀ via the input point In and each of the buffer lamps 10. Since the free-running frequency and the capture range set for each 11 are different, each lamp 14 in each of the above blinking blocks LB to LB ₁₀ blinks in a different blinking manner.

In the above embodiment, the free-running frequencies of the VCOs 11b of the respective PLL circuits 11 are set so as not to simply overlap, but in the device of the present invention, the free-running frequency of the VCOs 11b is, for example, twelve averages based on 440 Hz. The width of the capture range could be set narrow within the range that does not affect the operations of each PLL circuit 11 while setting the tuning scale. By doing so, it is possible to realize the lighting of the lamps 14 of the respective channels corresponding to the above-mentioned 12th uniform scale used in the music of the music signal input from the input point In. This means that the lighting of the lamp 14 of each channel is almost in synchronism with the 12th temperament scale in the music, so that the harmony of music and light can be realized.

In each of the embodiments shown in FIGS. 1 and 2, the music signal is input by connecting the output end of the music signal of the audio device Ad to the input point In of the device. In the apparatus, a microphone (not shown) may be provided as a built-in type or an external type instead of the input point In or switchable to the input point In. The microphone is equipped with a microphone amplifier. With this configuration, the sound that is being sent to the outside from the speaker or the like around the Christmas tree is picked up by the microphone and converted into a music signal, which is used as the input music signal of the device of the present invention. You can

When the device of the present invention equipped with the microphone as described above is mounted on a vehicle or the like, various vibrations may be discarded by the microphone, which may cause a pickup error in the sound of music. In order to prevent or suppress this, it is advisable to appropriately sandwich a vibration damping material such as a damping material between the microphone and a member in contact with the microphone.

In the above-mentioned device of the present invention, the lights for the Christmas tree are made to blink in response to the different frequency ranges of the input music signal, respectively. An external output terminal (not shown) for connecting a motor or another lamp to the outside of the device of the present invention can be provided in the output circuits 13 and 26 in parallel with the respective lamps 14 and 27. May be. By doing so, in addition to the blinking of the lamps 14 and 27 integrated with the device of the present invention, the blinking of the external lamps and the movable display driven by the external motor can be activated in synchronization with the blinking of each lamp.

On the other hand, the above-mentioned device of the present invention is provided with a reception-only adapter (not shown) which can be connected to a music signal transmission device using light, radio waves, or infrared rays as a transmission medium, in front of the input point In. The music signal passing through may be added to the input point In. By doing so, the format of the music signal applied to the input point of the device of the present invention can be expanded, and even when multiple devices of the present invention are installed in the same place, one transmission adapter (not shown) is used. Since the simplicity can be supplemented by receiving the signal from (1), the range of use is further expanded.

[0029]

[Effect of device]

 The present invention is as described above, and by using a band pass filter or a PLL circuit, the frequency of the audible frequency band of the music signal is made to correspond to a plurality of non-overlapping frequency distributions, and a lamp for a Christmas tree. Since it is designed to blink, compared to conventional Christmas tree lamps that use a bimetal type blinking lamp, and Christmas tree lamps that match only the music written in the IC memory. , It is possible to realize a blinking state in response to various music and sounds that flow to the outside and the surroundings. Further, even if a conventional bimetal tree lamp is connected to the lamp device of the present invention, since the lamp extinguishing control is performed evenly before the bimetal operates, the conventional bimetal tree lamp. Can be used as is without modification

Further, in the device of the present invention using the PLL circuit, since the PLL circuit to be used is integrated into one chip by an IC or the like, it can be obtained easily and at low cost, and therefore the above advantages are further promoted. Furthermore, since the output circuit for blinking the Christmas tree lamp is driven by utilizing the characteristic of the PLL circuit that can easily set or change the operating condition, various operating characteristics of the PLL circuit can be set and changed. The flashing lamp flashing device for the Christmas tree can easily be made to have a variety of flashing variations and flashing modes that cannot be realized by conventional devices. Is extremely useful as

[Submission date] January 12, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is, for example, a low-frequency sound such as a drum, a high-frequency sound such as a cymbal, or a singing voice among all frequency components included in music that is being played or broadcast. It relates to a Christmas tree lamp device in which the lamp attached to the Christmas tree is made to blink in synchronization with the surrounding music in accordance with such changes.

[0002]

[Prior art]

 In a conventional blinking lamp device for a Christmas tree, for example, as shown in FIG. 4, a music signal generated by a melody IC 31 is amplified by an amplifier 32, and a sounding body 33 such as a small speaker built in the lamp blinking device is provided. While the music is being sent from the outside to the outside, the amplified music signal described above is supplied to the detection block 34 for detection, and the time constant circuit 35 connected to this detection block 34 causes the frequency component caused by the pitch of the sound to be detected. To form an intermittent music signal, extract only the timings of the notes of the intermittent music signal, and supply this to the output circuit 36 to blink the Christmas tree lamp 37. There are many. In FIG. 4, 38 is a power supply block including an AC / DC inverter, and 39 is a commercial power supply plug of the block.

In the conventional blinking lamp device for the Christmas tree shown in FIG. 4, the melody IC 31 is used because when the melody IC 31 generates a sound by the music information written in the ROM therein, Since the note (sound) and the note (sound) delimiter, which are the characteristics of the melody IC31, are relatively prominent, the timing of the required note for forming the lighting signal for the Christmas tree lamp is extremely simple. Because it can be extracted.

However, the conventional device using the melody IC 31 has a drawback that the lamp 37 for the Christmas tree can be blinked only by the specific music written in the melody IC 31. Even if the melody IC 31 contains a plurality of songs, the standard number of songs that can be written is about 10. Therefore, the lamp 37 for the Christmas tree uses the lamp of 10 songs that are repeatedly supplied. Since 37 is made to blink, there is a problem that it gets used to it in a short time, the interest is lost, and so-called tiredness is easily caused. Further, in the blinking of the lamp for the Christmas tree using the melody IC31 as described above, for example, since about 30 light bulbs are blinking all at once, it is simple in combination with the fact that the music is constant. I feel that I can only feel the change, and in this respect too, there is a lack of interest. In this respect, even if 10 lamps are turned on in sequence by using, for example, a digital IC, the lamps simply flash regularly, as in the above case, and thus they are not very interesting. .

[0005]

[Problems to be solved by the device]

 In view of the present situation of the blinking lamp device for the Christmas tree as described above, the present invention is not a type that blinks only in response to the specific music stored therein, but the surrounding music that flows in the place where the Christmas tree is installed. A lamp for a Christmas tree that can pick up the sound from a tree and make a dynamic light with a change that is in tune with the surrounding sound picked up by the lamp installed in that tree, or that can activate the blinking etc. It is an object to provide a device.

[0006]

[Means for Solving the Problems]

 One of the configurations of the present invention made for the purpose of solving the above-mentioned problems is a bandpass filter that passes only a predetermined frequency set in advance, and a filter output that is connected to the filter and amplifies the filter output. An amplifier, a detection circuit connected to the amplifier for extracting its DC component, and a time constant circuit connected to the detection circuit for stabilizing the output voltage from the detection circuit based on the set frequency component of the filter. , A voltage comparison circuit connected to the time constant circuit and a lamp connected to the comparison circuit and lit by the output of the circuit are provided as a plurality of channels. The input ends of the pass filter are grouped together to form one signal input point, and an electrical music signal from an audio device is input to this input point. The band pass filter of each channel is set in advance so that each pass frequency of the band pass filter of each channel basically has a center frequency distribution that does not mutually overlap in the audible frequency band. It is characterized in that each output circuit is driven by the output of each voltage comparison circuit obtained by the music signal of each band that passes the above, and the lamp of each channel is made to blink.

Another configuration of the present invention, which has been made in order to solve the problem of the present invention more prominently in place of the above configuration, generates a buffer amplifier and a digital output signal connected to the buffer amplifier. PLL circuit equipped with a lock state detection circuit, a time constant circuit connected to the PLL circuit, an output circuit connected to the time constant circuit, and connected to the output circuit and turned on by the output of the circuit A lamp and multiple channels are provided as one channel, and the input ends of the buffer amps for each channel are combined to form one signal input point, and an electrical music signal is input to this input point from an audio device, etc. And the widths of the free-running frequency and the capture range of the P LL circuits of the respective channels are set to the respective PLLs. The frequency distribution is basically non-overlapping in the circuit, and it is arbitrarily preset so as to be within the human audible frequency band, and is arbitrarily set among all frequency components constituting the music signal. By detecting the lock state of each PLL circuit only in a specific frequency range corresponding to each width of each capture range, the lock state detection provided in each PLL circuit is detected. It is characterized in that each output circuit is driven by a stable signal obtained by integrating the output signal from the circuit in each of the time constant circuits to blink the lamp of each channel.

[0008]

【Example】

 Next, an example of implementation of the device of the present invention will be described with reference to FIG. FIG. 3 is a functional block diagram showing an example of the device of the present invention in which a lamp attached to a Christmas tree is made to blink in response to a frequency such as ambient sound. In FIG. 3, 20 L is a low pass filter, 21 is an amplifier, 22 is a detection circuit, 23 is a time constant circuit, 24 is a voltage comparison circuit, 25 is a reference voltage set as a comparison reference of the voltage comparison circuit 24, and 26 is a reference voltage. Is an output circuit, and 27 is a lamp for a Christmas tree, which constitutes a functional block of one channel corresponding to a certain band of sound, here low frequency. Thus, in the figure, 20H is a high-pass filter and 20B and 20B 'are bandpass filters, but the frequency band through which any filter including 20L and 20H passes is different. Then, each of the filters 20B, 20B ', 20H has the same functional block as the above-mentioned one channel on the subsequent stage side, and has a functional block for blinking the lamp 27 corresponding to each pass band frequency. There is. Therefore, the same reference numerals in the drawings indicate the same functional blocks. In is an input point of an electric music signal.

In the device of the present invention shown in FIG. 3, when an electric music signal of music arbitrarily selected from the audio equipment Ad or the like is applied to the input point In, the signal has a low pass filter 20L and a pass band respectively. The signals are transmitted in parallel to the different band-pass filters 20B and 20B 'and the high-pass filter 20H, and are differentiated into the respective frequency bands set in the filters 20H to 20L. At this time, since the music signal input first is attenuated by the AC resistance component of the LCR which is a constituent element of each filter 20H to 20L, it is connected to the subsequent stage of each filter 20L, 20B, 20B ', 20H. The amplifier 21 amplifies the signal. Then, the output of each amplifier 21 is passed through each detection circuit 22 to be a DC component, and converted to a DC voltage level by each time constant circuit 23 in the subsequent stage.

In the time constant circuit 23 of each channel, as the frequency of the electric music signal applied to the input point In approaches the respective center frequencies set in the filters 20L to 20H in the preceding stage, the relevant frequency is reduced. The output voltage level of the circuit 23 is stabilized and rises. In other words, when there is a frequency close to the center frequency of each of the filters 20L to 20H among all the frequency components included in the music added to the input point In, each of the filters 20L to 20H It is shown that the output voltage of the time constant circuit 23 rises. Then, the output voltage of each time constant circuit 23 is input to each voltage comparison circuit 24 in the next stage and compared with a preset reference voltage 25, and the output voltage of this time constant circuit 23 exceeds the reference voltage. At that time, the corresponding output circuit 26 is activated so that the Christmas tree lamp 27 connected to the output circuit 26 blinks. When the output circuit 26 is not activated, the lamp 27 is off.

Therefore, according to the above-described example of the device of the present invention, the center frequencies of the filters 20L to 20H of the respective channels are set to the frequency bands such as the sound of the drum and the cymbal, respectively. The lamps 27 of the respective channels will blink according to the sounds of the drums and cymbals. If the filters 20L to 20H used here are of a general-purpose type and have a minus 6 dB / oct characteristic, it is possible to make the lamp 27 blink reliably, provided that the human audible frequency is not exceeded. Since the range (about 20 Hz to 20 KHz) can be divided into, for example, about 3 divisions, that is, about 3 channels, the blinking state of the lamp 27 provided corresponding to each channel is visually delicate to the sound of music. There is a little less delicate feeling that it flashes in sync with. To improve this point, the amplification factor of each amplifier 21 is increased, the accuracy of each voltage comparison circuit 24 is increased, and each band-pass filter 20L to 20H having substantially a minus 18 dB / oct characteristic is used. The audible frequency range may be divided into about 5 parts. By doing this, it is possible to realize the blinking operation of the lamp corresponding to the sound of music more finely. In the example of the device of the present invention of the above embodiment, the lamp for the Christmas tree can be made to blink in correspondence with the frequency band of the music, so by incorporating a bimetal contact in the conventional lamp, it simply blinks by this action. It is possible to realize a blinking state that is far more interesting than the blinking of the lamp. As the lamp 27 in the above-described embodiment, any light emitting body can be used as long as it can emit visible light regardless of its light emitting method. In this case, it is a matter of course that the output circuit 26 has a circuit configuration corresponding to the light emission method of the lamp 27.

In the above-described embodiment, the number of the Christmas tree lamps 27 that are operated by the device of the present invention to blink is sufficient if there is at least one lamp for each channel, but normally, or preferably, a plurality of lamps are provided for each channel. Each output circuit 26 is formed so that the lamp 27 can be connected in series or in parallel to the output circuit 26 of each channel. Alternatively, it is also possible to use a triac or the like to form an output circuit 26 capable of directly opening and closing the commercial power supply, and to connect and use a conventional tree lamp as it is. The plurality of lamps 27 in each channel change colors for each channel, that is, a plurality of lamps of the same color can be provided in a certain channel, or a plurality of lamps of the same channel can be connected. . It is up to you to decide which lamp color to use. In any case, if the audible frequency band included in the music can be further subdivided and a large number of Christmas tree lamps can be made to blink corresponding to the subdivided frequency bands, the above-mentioned interests will be fulfilled. The blinking lights for the Christmas tree are expected to be even more attractive. In addition, even if a conventional bimetal tree lamp is connected to the lamp device of the present invention, the lamp extinguishing control is performed on average before the bimetal operates, so it is necessary to modify the conventional bimetal tree lamp. It can be used as it is.

Therefore, as a result of earnest studies by the inventors of the present invention, in practice, the audible wave number range (about 20 Hz to 20 Hz) of a person, for example, can be set under the condition that a lamp for a Christmas tree can be reliably blinked. It can be divided into about 10 channels, and while individual lamps on each channel can perform sharp blinking operations, the circuit configuration is simplified by reducing the number of actual parts, Moreover, since it was possible to complete a blinking lamp device for a Christmas tree, which is capable of blinking in accordance with a desired music (sound frequency) at low cost, next, this embodiment is shown in FIGS. More will be described.

In FIG. 1, 10 is a buffer amplifier, 11 is a PLL circuit, and this PLL circuit 11 connects the output terminal of the buffer amplifier 10 to the input terminal of the phase comparator 11a as shown in FIG. A lock state detection circuit 11d for detecting that the circuit 11 is in the lock state is provided. Reference numeral 12 is a time constant circuit connected to the PLL circuit 11, which integrates the lock state detection output signal detected by the lock state detection circuit 11d into a voltage level signal and outputs it to the next stage circuit. Reference numeral 13 is an output circuit connected to the time constant circuit 12 and driven by the output signal of the time constant circuit 12, and 14 is a Christmas tree lamp connected to the output circuit 13, and the output being driven. It is made to decrease by the circuit 13. Also in the device of the present invention of this embodiment, any light-emitting body can be used for the lamp 14 as long as it can emit visible light, regardless of the light-emitting method, which is the same as the previous embodiment. As the lamp 14, for example, not only an incandescent lamp but also a discharge tube such as a neon sign tube or a fluorescent lamp tube, or a light emitting body such as an LED can be used. Further, it goes without saying that the output circuit 13 has a circuit configuration corresponding to the light emitting method of the lamp 14. Furthermore, even if a conventional bimetal tree lamp is connected to the lamp device of the present invention, the extinguishing control of the lamp is performed on average before the bimetal is activated, so the conventional bimetal tree lamp is modified. It is the same as the above-mentioned embodiment in that it can be used as it is without performing.

In the device of the present invention of another example shown in FIG. 1, the audible frequency band is divided into, for example, 10 channels of one channel by a functional block from the buffer amplifier 10 to the lamp 14. It is formed as a lamp blinking block LB. Therefore, in order to construct a device that blinks, for example, 10 sets of lamps for each specific frequency or range of the audible frequency band of the music signal divided into 10 parts, the above lamp blinking block LB is used. This means that a total of 10 channels will be installed side by side.

In the device of the present invention shown in FIG. 1, the blinking block in the middle portion is omitted and the lamp blinking block LB is a block LB showing four channels for convenience of description and drawing. , LB ₂ , LB ₃ , and LB ₁₀ . Therefore, the same reference numerals in FIG. 1 are the same functional blocks. Also in the functional block of the device of FIG. 1, the input ends of the respective buffer amplifiers 10 in the above blinking blocks are collectively formed as one signal input point In, and an electrical music by an audio device Ad or the like is formed at this input point In. A signal is input, but this point is the same as in the previous embodiment.

In the device of the present invention of the above-mentioned another example, in the audio frequency band (about 20 Hz to 20 KHz) included in the music signal input to the signal input point In, the signals are divided so that they do not overlap each other in principle. The lamps 14 for the respective Christmas mass trees of the respective lamp blinking blocks LB 1 to LB ₁₀ are individually controlled to blink according to the frequency range. This point will be described below.

In the device of the present invention shown in FIG. 1, in each PLL circuit 11 shown in FIG. 2 included in each lamp blinking block LB to LB ₁₀ , each voltage controlled oscillator 11b (hereinafter referred to as VCO) is self-propelled. The frequency f _{2 is set} to, for example, 100 Hz, 500 Hz, 1 KHz, 2 KHz, 4 KHz, 6 KHz, 8 KHz, 15 KHz, 18 KHz, and a capture range for each of these free-running frequencies is set in each PLL circuit. In addition, each capture range is set as small as possible and adjusted so that the frequency ranges operating in the respective PLL circuits do not overlap. The width of this capture range is adjusted by adjusting the level of the control voltage V ₂ of the VCO 11b using a variable resistor, or changing the oscillation characteristic of the VCO 11b or the filter characteristic of the loop filter 11c. In FIG. 2, 11a is a phase comparator that compares the phase of the input frequency f ₁ of the music signal input from the buffer amplifier 10 with the output frequency f ₂ of the VCO 11b in real time, 11c is a loop filter, and the phase comparator 11a Output V ₁ is integrated to generate positive and negative DC output voltage V ₂ . This output voltage V ₂ becomes the control voltage of the VCO 11b. In addition, C ₁ and R ₁ are a capacitor and a resistor included in the VCO 11b.

In the locked state, the PLL circuit 11 shown in FIG. 2 is controlled by the output V ₂ of the loop filter 11c so that the VCO 11b follows the input frequency f ₁ of the phase comparator 11a. When the input frequency f ₁ of the device 11a is out of its lock range, the follow-up operation cannot be performed. That is, the output V ₂ of the loop filter 11c is not generated.

Therefore, if it is detected whether or not there is the output V ₂ of the loop filter 11c, it is possible to detect whether the PLL circuit 11 is in the locked state or the unlocked state. Reference numeral 11d is a lock state detection circuit attached to each PLL circuit 11. The output of this circuit 11d detects the lock state of each PLL circuit 11, and this detection signal is input to each time constant circuit 12.

Thus, the VCO 11b of each PLL circuit 11 in the lamp blinking blocks LB to LB ₁₀ of each channel is preset with different free-running frequencies and capture ranges within the audible frequency band. The detection of the locked state of the PLL circuit 11 of the lamp blinking blocks LB to LB ₁₀ of each channel is detected in the range of different frequencies. In this way, when the lock state is detected in the frequency range different for each PLL circuit 11 in each channel, the output signal is integrated in each time constant circuit 12, and this integrated signal is integrated. The signals drive the respective output circuits 13 to individually flash the lamps 14 of each channel.

As described above, since the lighting of the lamp 14 of each channel is considered when the PLL circuit 11 in each of the lamp blinking blocks LB to LB _{10 is} in the locked state, if each PLL circuit 11 is in the unlocked state, The channel lamp 14 is not lit and is extinguished.

Then, the same music signal from the audio device Ad or the like is input to each of the lamp blinking blocks LB to LB ₁₀ via the input point In and each buffer amplifier 10, but the PLL circuit of each channel described above. Since the free-running frequency set for each 11 and the capture range are different, each lamp 14 in each of the blinking blocks LB to LB ₁₀ blinks in a different blinking manner.

In the above embodiment, the free running frequencies of the VCOs 11b of the PLL circuits 11 of the respective channels are set so that they do not simply overlap. However, in the device of the present invention, the free running frequency of the VCO 11b is set to twelve, for example, 440 Hz. The width of the capture range can be set to be narrow within a range that does not affect the operations of each PLL circuit 11 while setting the equal temperament scale. By doing so, it is possible to realize the blinking of the lamp 14 of each channel corresponding to the above-mentioned twelve-tone equal tempered scale used in the music of the music signal inputted from the input point In. This means that the blinking of the lamp 14 of each channel is almost synchronized with the 12th temperament scale in the music, so that the harmony of music and light can be realized.

In each of the embodiments shown in FIGS. 1 and 3, the music signal is input by connecting the output end of the music signal of the audio device Ad to the input point In of the device. Then, instead of the input point In, or the input point In may be switched and a microphone (not shown) may be provided internally or externally. The microphone is equipped with a microphone amplifier. By adopting this configuration, the sound emitted from the speaker to the outside around the Christmas tree is picked up by the microphone and converted into a music signal, which is used as the input music signal to the device of the present invention. You can

When the device of the present invention equipped with the microphone as described above is mounted on a vehicle or the like, various vibrations may be discarded by the microphone, which may cause a pickup error in the sound of music. In order to prevent or suppress this, it is advisable to appropriately sandwich a vibration damping material such as a damping material between the microphone and a member in contact with the microphone.

In the above-mentioned device of the present invention, the lights for the Christmas tree are made to blink in response to the different frequency ranges of the input music signal, respectively. The circuits 13 and 26 may be provided in parallel with the respective lamps 14 and 27 so as to be provided with an external output terminal (not shown) for connecting a motor or another lamp to the outside of the device under consideration. . By doing so, in addition to the flashing of the lamps 14 and 27 integrated with the device of the present invention, the flashing of an external lamp and the movable display driven by an external motor can be operated in synchronization with the flashing.

On the other hand, the above-mentioned device of the present invention is provided with a reception-only adapter (not shown) which can be connected to a music signal transmission device using light, radio waves, or infrared rays as a transmission medium, in front of the input point In. You may make it add the music signal which passed the apparatus to the input point In. By doing so, the format of the music signal applied to the input point of the device of the present invention can be expanded, and even when several devices of the present invention are installed in the same place, one transmitting adapter (not shown) is used. Since the simplicity can be supplemented by receiving the signals from (1), the range of use will be further expanded.

[0029]

[Effect of device]

 The present invention is as described above, and uses a bandpass filter or a PLL circuit to make the frequency of the audible frequency band of a music signal correspond to a plurality of non-overlapping frequency distributions and to provide a lamp for a Christmas tree. Since it is made to blink, compared to the blinking of the Christmas tree lamp using the conventional bimetal type blinking lamp and the Christmas tree lamp blinking that matches only the music written in IC memory, It is possible to realize a blinking state in response to various music and sounds flowing around. Moreover, even if a conventional bimetal tree lamp is connected to the lamp device of the present invention, the extinguishing control of the lamp is performed evenly before the bimetal is activated, so that it is possible to modify the conventional bimetal tree lamp without modification. Can be used as is

Further, in the device of the present invention using the PLL circuit, since the PLL circuit to be used is integrated into one chip by an IC or the like, it can be obtained easily and at low cost, and therefore the above advantages are further promoted. Furthermore, since the output circuit for blinking the lamp for the Christmas tree is driven by utilizing the characteristics of the PLL circuit that can easily set or change the operating conditions, various operating characteristics of the PLL circuit can be set and changed. , It is very useful as a blinking lamp device for the Christmas tree because it makes it possible to easily make a variety of blinking variations and blinking modes of the Christmas tree lamp that cannot be realized by the conventional device.

[Brief description of drawings]

FIG. 1 is a functional block diagram showing an example of the device of the present invention.

FIG. 2 is a functional block diagram showing another example of the device of the present invention.

FIG. 3 is a functional block diagram of an example of a PLL circuit used in the device of the present invention shown in FIG.

FIG. 4 is a functional block diagram of an example of a conventional device.

[Explanation of symbols]

 20L Low pass filter 20B, 20B 'Band pass filter 20H High pass filter 21 Amplifier 22 Detection circuit 23 Time constant circuit 24 Voltage comparison circuit 25 Reference voltage 26 Output circuit 27 Christmas tree lamp 10 Buffer amplifier 11 PLL circuit 12 Time constant circuit 13 Output circuit 14 Christmas tree lamp LB lamp flashing block In Input point Ad Audio device

[Procedure amendment]

[Submission date] January 12, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

[Title of device] Lamp device for Christmas tree that blinks according to surrounding music

[Scope of utility model registration request]

[Brief description of drawings]

FIG. 1 is a functional block diagram showing another example of the device of the present invention.

FIG. 2 is a functional block diagram of an example of a PLL circuit used in the device of the present invention shown in FIG.

FIG. 3 is a functional block diagram showing an example of the device of the present invention.

FIG. 4 is a functional block diagram of an example of a conventional device.

[Explanation of Codes] 20L Low-pass filter 20B, 20B 'Band-pass filter 20H High-pass filter 21 Amplifier 22 Detection circuit 23 Time constant circuit 24 Voltage comparison circuit 25 Reference voltage 26 Output circuit 27 Christmas tree lamp 10 Buffer amplifier 11 PLL circuit 12:00 Constant circuit 13 Output circuit 14 Christmas tree lamp LB lamp blinking block In Input point Ad Audio equipment

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location H01L 33/00 L 7376-4M

Claims (9)

[Scope of utility model registration request] 1. A bandpass filter that passes only a predetermined frequency that is arbitrarily set in advance, an amplifier that is connected to the filter and amplifies the output of the filter, and a detection circuit that is connected to the amplifier and extracts its DC component. A time constant circuit connected to the detection circuit for stabilizing the output voltage from the detection circuit based on the set frequency component of the filter, a voltage comparison circuit connected to the time constant circuit, and connected to the comparison circuit. And a lamp lit by the output of the circuit is provided as a single channel,
The input ends of the bandpass filters in each channel are collectively formed into one signal input point, and an electric music signal from an audio device or the like is input to this input point. By setting the respective pass frequencies of the band pass filters of the above so as to have center frequency distributions that basically do not overlap with each other within the audible frequency band, the band pass filters of the respective channels are passed. A Christmas tree that blinks according to the surrounding music, etc., characterized in that each output circuit is driven by the output of each voltage comparison circuit obtained from the music signal to turn on the lamp of each channel.
Lamp device for car. 2. A PLL circuit including a buffer amplifier, a lock state detection circuit connected to the buffer amplifier for generating a digital output signal, a time constant circuit connected to the PLL circuit, and the time constant circuit. A plurality of channels are provided as one channel of a connected output circuit and a lamp which is connected to the output circuit and is lit by the output of the circuit, and the input ends of the buffer amplifier in each channel are put together into one signal input. It is formed by inputting an electric music signal from an audio device or the like to this input point, and the free-running frequency and the width of the capture range of each PLL circuit of each channel are determined by Arbitrarily preset in such a manner that the frequency distributions of the PLL circuits are basically non-overlapping and are within the human audible frequency band At the same time, among all the frequency components constituting the music signal, the respective PLL circuits are locked only in a specific frequency range corresponding to the width of each of the capture ranges set arbitrarily. By doing so, each output circuit is driven by a stable signal obtained by integrating the output signal from the lock state detection circuit provided in each PLL circuit in each of the time constant circuits, to drive each output circuit. A lamp device for a Christmas tree that flashes in accordance with the surrounding music, etc., by lighting the lamp. 3. The apparatus according to claim 1 or 2, wherein a microphone is built in the input point, or an input terminal or the like to which a microphone can be connected from the outside is provided to form the input point so that the microphone can be input. By adding a microphone amplifier connected to the microphone and an input changeover switch connected to this microphone amplifier, the sound of music output from the surrounding speakers etc. is picked up by the microphone and is electrically connected. A lamp device for a Christmas tree that flashes in accordance with surrounding music and the like, characterized in that the music signal is converted into a specific music signal and the music signal is input from the input point. 4. The apparatus according to claim 1 or 2, wherein an optical fiber-cable transmission device for a voice signal, an electric wave, an infrared ray, or the like is used before an electric music signal input point to the device. An adapter for exclusive use of reception of a voice signal cordless transmission device is integrally provided in the device as a part of the device, and an electric music signal obtained from the exclusive adapter for reception is added to the input point. A lamp device for a Christmas tree that flashes according to the surrounding music, etc., which is characterized in that the device is operated. 5. The apparatus according to claim 1 or 2, wherein an external output terminal for connecting an additional lamp or a motor to the outside of the apparatus is added in parallel with the Christmas tree lamp connected to the output circuit. A lamp device for a Christmas tree that blinks in accordance with the surrounding music and the like. 6. When the device according to claim 1 or 2 is mounted on a vehicle, a pickup error of a music sound due to a bone vibration action caused by a vehicle body vibration caused by a traveling road surface condition or an engine vibration that accompanies a traveling or the like. In order to suppress the noise, a lamp for a Christmas tree that has a structure in which a vibration absorbing material such as a sponge material or a glass wool material is inserted between the device housing case and the microphone and blinks in accordance with the surrounding music. apparatus. 7. A Christmas tree for blinking in accordance with ambient music according to claim 2, wherein a specific frequency range in which the PLL circuit of each channel is locked is set to a frequency range indicating each scale. Lamp device. 8. The apparatus according to any one of claims 1 to 7, wherein the output circuit of each channel is formed in a control unit type having a box shape or the like to which an existing Christmas tree lamp can be connected. A Christmas tree lamp device that flashes according to the surrounding music. 9. The apparatus according to claim 1, wherein a dry battery is used as a power source, and an LED is used instead of a lamp to form a cordless type device. A flashing lamp for Christmas tree.