摘要:
An on-vehicle sound instrument with a face plate which does not require any switch mounted thereon to improve portability is not started unless the face plate is mounted on an instrument body, and even if any switch in the instrument body is manipulated. The face plate (30) detachably mounted on the instrument body (10) does not have any switch mounted thereon and includes operation keys (320). The instrument body (10) includes a microcomputer (40) for controlling sound signal outputs and adjustments and an input unit (44) formed of switches for inputting various data to the microcomputer (40) through inputs from the operation keys (320). When the face plate (30) is removed from the instrument body (10) and, for example, a power switch is turned on, a start setting device (60) prevents the microcomputer (40) from activating. The start setting device (60) includes two switches (62, 64) which are simultaneously turned on when the face plate (30) is dismounted from the instrument body (10). When both switches (62, 64) are in their ON state, the chip enable terminal of the microcomputer (40) becomes low. As a result, the microcomputer (40) is not started to activate the instrument body (10).
摘要:
5 n7 A radio receiver such that even though the variations of elements are large, the receiving condition can be set the same irrespective of the antenna input level. In the receiver, a high-frequency cut-off circuit (30) removes a high-frequency band included in a composite signal according to a high-frequency cut-off factor and according to the voltage applied to an HCC terminal (30a). The main signal and the sub-signal which are included in the composite signal are demodulated respectively by main demodulation and sub-demodulation circuits (32, 34). In the sub-demodulation circuit (34), based on the voltage applied to an SPC terminal (34a), the demodulation level of the sub-signal is changed from 0 to 100 % according to its separation characteristic to control the separation. From the demodulation main signal and sub-signal, a matrix circuit (36) reproduces L and R signals and outputs them. A signal meter output voltage from an FM detection IC (12) is inputted to a microcomputer (20). In an operation part (24), based on the signal meter output reference voltage and a control reference voltage which are stored in an EEPROM (18), the intrinsic signal meter output voltage of the receiver is corrected, and the SPC and HCC voltages, which have no variation due to differences in antenna input level even though the antenna input level changes are calculated to be applied to the HCC and SPC terminals (30a, 34a).
摘要:
A remote controller for dubbing having a dubbing set key (40) for successively outputting play and still codes both for a reproduction side VTR (10) as well as record and pause codes both for a record side VTR (12), and a dubbing start key (42) for successively outputting a play code for the reproduction side VTR (10) and a record code for the record side VTR (12). The two VTRs (10, 12) are set under the still and pause conditions by the operation of the set key (40), and are started nearly simultaneously by the operation of the start key (42) to commence the dubbing. A combination of the above remote controller and one VTR constitutes video equipment with synchronous dubbing function. Therefore, merely by using another VTR having no special jack for dubbing, it is possible to effect wireless synchronous dubbing.
摘要:
A remote controller for dubbing having a dubbing set key (40) for successively outputting play and still codes both for a reproduction side VTR (10) as well as record and pause codes both for a record side VTR (12), and a dubbing start key (42) for successively outputting a play code for the reproduction side VTR (10) and a record code for the record side VTR (12). The two VTRs (10, 12) are set under the still and pause conditions by the operation of the set key (40), and are started nearly simultaneously by the operation of the start key (42) to commence the dubbing. A combination of the above remote controller and one VTR constitutes video equipment with synchronous dubbing function. Therefore, merely by using another VTR having no special jack for dubbing, it is possible to effect wireless synchronous dubbing.
摘要:
A car-mounted sound device wherein the portability of a face plate is improved by not equipping it with a switch and wherein after the face plate has been removed, the device is not activated even if a switch on a device main body (10) is operated. A face plate (30) is detachably provided on the device main body (10), and there is equipped not switch but an operation key (320) on this face plate (30). Provided on the side of the device main body (10) are a microcomputer (40) for controlling sound signals and an input section (44) constituted by switches for inputting various types of information. An activating condition setting means (60) is provided for keeping the microcomputer (40) inactive even if a power source switch is operated after the face plate (30) has been removed. This activating condition setting means (60) has two switches (62, 64) that are turned on simultaneously when the face plate (30) is removed. When the two switches remain turned on, the microcomputer (40) is not activated, and the device main body (10) is not operated.
摘要:
A frequency synthesizer provided with a phase comparator (10) for comparing a feedback frequency with a reference frequency, a filter (12) connected to the phase comparator (10) and passing low frequencies, a voltage-controlled oscillator (14) connected to the filter (12), a multistage frequency converter (16) receiving the oscillation signal generated by the voltage-controlled oscillator (14), a frequency demultiplier for forming a feedback frequency by frequency-demultiplying the output of the multistage frequency converter (16). The multistage frequency converter (16) is constituted by connecting a plurality of frequency converters, which perform non-integer frequency-demultiplication, in series or in parallel with each other. Consequently the ratio of the frequency-demultiplication can be set arbitrarily and finely. Thereby, no matter how the output frequency of the frequency synthesizer changes, the feedback frequency inputted to the phase comparator can be set constant and high. Therefore, the reference frequency can be set as high as the feedback frequency too, independently of the spacing frequency between the output channels of the voltage-controlled oscillator (14), and the speed of ziehen effect can be made very high.
摘要:
A remote controller for dubbing having a dubbing set key (40) for successively outputting play and still codes both for a reproduction side VTR (10) as well as record and pause codes both for a record side VTR (12), and a dubbing start key (42) for successively outputting a play code for the reproduction side VTR (10) and a record code for the record side VTR (12). The two VTRs (10, 12) are set under the still and pause conditions by the operation of the set key (40), and are started nearly simultaneously by the operation of the start key (42) to commence the dubbing. A combination of the above remote controller and one VTR constitutes video equipment with synchronous dubbing function. Therefore, merely by using another VTR having no special jack for dubbing, it is possible to effect wireless synchronous dubbing.
摘要:
An on-vehicle sound instrument with a face plate which does not require any switch mounted thereon to improve portability is not started unless the face plate is mounted on an instrument body, and even if any switch in the instrument body is manipulated. The face plate (30) detachably mounted on the instrument body (10) does not have any switch mounted thereon and includes operation keys (320). The instrument body (10) includes a microcomputer (40) for controlling sound signal outputs and adjustments and an input unit (44) formed of switches for inputting various data to the microcomputer (40) through inputs from the operation keys (320). When the face plate (30) is removed from the instrument body (10) and, for example, a power switch is turned on, a start setting device (60) prevents the microcomputer (40) from activating. The start setting device (60) includes two switches (62, 64) which are simultaneously turned on when the face plate (30) is dismounted from the instrument body (10). When both switches (62, 64) are in their ON state, the chip enable terminal of the microcomputer (40) becomes low. As a result, the microcomputer (40) is not started to activate the instrument body (10).
摘要:
A car-mounted sound device wherein the portability of a face plate is improved by not equipping it with a switch and wherein after the face plate has been removed, the device is not activated even if a switch on a device main body (10) is operated. A face plate (30) is detachably provided on the device main body (10), and there is equipped not switch but an operation key (320) on this face plate (30). Provided on the side of the device main body (10) are a microcomputer (40) for controlling sound signals and an input section (44) constituted by switches for inputting various types of information. An activating condition setting means (60) is provided for keeping the microcomputer (40) inactive even if a power source switch is operated after the face plate (30) has been removed. This activating condition setting means (60) has two switches (62, 64) that are turned on simultaneously when the face plate (30) is removed. When the two switches remain turned on, the microcomputer (40) is not activated, and the device main body (10) is not operated.