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Description 1 Title of Invention
4. Brief description of the drawings 1. FIG. 1 is a diagram of a head-on according to the present
invention, p ′ 12 shown in plan, which is unfolded in a plane, in order to show the differential
acoustic pipe and the reflective acoustic pipe interconnecting the earpieces facing each other.
Sectional view of an integrated differential sound coil and a reflective acoustic tube as an integral
structure, FIG. 3 forms either a differential acoustic tube or a reflective acoustic tube with a
membrane for isolating the gas-filled chamber 4 is a cross-sectional view of the band of the head
phone incorporated in the acoustic tube, and FIG. 5 is an enclosure showing the acoustic tube
introduced through the annular pad. Fig. 6 is a cross-sectional view of a type earpiece, and a
vertical cross-section showing another embodiment of the headphone according to the present
invention! Importantly, FIG. 7 is a cross-sectional view taken along line 6-- in FIG. 6, and FIG. 8 is
a cross-sectional view of a head node taken along line 6--in FIG. FIG. 10 is an external view
showing another embodiment of a head phone according to the present invention, which is
similar to the embodiment shown in FIG. 10. FIG. 10 is a block diagram showing the transmitter
circuitry of the head phone shown in FIG. Is a schematic view showing a modification of the one
shown in Fig. 9) earpieces (2) acoustic chamber (3) differential acoustic tube (4) reflection
acoustic tube (5) diaphragm (6) central chamber (7) Separated rotation control device (8)
Integrated structure unit (9) Tube ring (11) Vibrating thin film, Boosted (-(1 B) pad body (1 →
band ring 05) pad (16) acoustic transmitter (17) lattice (17 Publication echo surface (1 @ balance
controller (211E acoustic propagation device (4)) acoustic connection pipe (well) (25) sen one
face acoustic rod (2Ql (Z7) earpiece M auxiliary acoustic tube G1) acoustic propagation device
(1321 acoustic propagation device (33) acoustic room (31) acoustic room C, 351 potentiometer
(37) auxiliary sound propagation device on the left (38) assistance to the right Sound
propagation device (39) Left auxiliary acoustic tube (40) (41) Reflective acoustic tube (42
acoustical sound tube (47): 481 auxiliary acoustic propagation device (49) knob 61) bracket (five
auxiliary acoustic rooms (53 ) Axis (54) acoustic room (57) rotation control device 4, C patent
applicants attorney patent attorney Takezawa Sous EndPage: 11
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