A headphone accessory such as an outer casing for use in combination with a headphone system, which makes the headphone system more comfortable to wear, and serves various function suitable for long time wearing. The headphone accessory includes a sound field-forming member having a cylindrical part, which supports speaker units for reproducing sound from electrical signals or supports enclosures in which the speaker units are mounted, surrounds listener's ears and forms a space in which sound o...

A headphone assembly which may be used with a sterophonic audio system, includes a U-shaped block of soft resilient material having a rear portion adapted to engage the back of the head of the user and having a pair of leg portions extending in a spaced-apart manner to grip snugly the head of the user therebetween and to engage the ears of the user, and a pair of speakers mounted within a pair of cavities in the ear-engaging portions of the legs, the openings to the cavities being oppositely dis...

A headphone construction includes freely radiating sound converters whose diaphragms, when the earphones are attached, are not loaded by the impedance of the wearers' ear. The diaphragm of the electrostatic converter is primarily mass-inhibited and damped by acoustic or mechanical friction resistances. Supporting elements are provided between the head and the earpiece which provide minimum spacing distance between the diaphragm and the inlet of the ear which corresponds practically to the contac...

A compact portable stereo headphone amplifier system for use with a conventional stereo audio source, such as a cassette or compact disc player, in which components are located on both sides of a circuit board and in which left channel components and right channel components are located on opposite sides of the circuit board thereby providing a compact unit.

A headphone device includes a pair of housings each attached to a hanger and supporting a loudspeaker unit, and a headband having opposite ends to which the hangers are secured. Each housing includes a front plate to which the loudspeaker unit is attached and a main body portion preferably constructed of natural wood and enclosing the loudspeaker unit with the exception of a front surface of the loudspeaker unit. The inner surface of the main body portion of the housing includes a plurality of i...

A headphone assembly for an active noise cancellation system has a rigid moulded plastics shell having a rigid baffle dividing the shell interior into a front volume and a closed rear volume, both of which may be filled with an acoustic foam. The baffle has a central opening in which is mounted a headphone transducer, and a seal cushion is disposed around the mouth of the shell, to effect an air-tight seal against the user's head. The headphone transducer has two effective sound radiating surfac...

A headphone assembly adapted for engaging a user's head includes an adjustable headband having first and second ends. A right ear piece is attached to a first end, and a left ear piece is attached to a second end of the headband. Each ear piece is substantially semi-circular shaped, and has a substantially inverted U-shaped shell having an inverted U-shaped inner wall. The U-shaped inner wall defines an acoustic cavity having a bottom end opening for receiving approximately the top half of the u...

A combination is provided which includes one or more headphones, a pair of eyeglasses, and a device which connects the eyeglasses and the one or more headphones. The combination may be provided as a self contained unit, which may also include a coiling device for an attached sound transmission coil. Alternatively, the headphones may be used in combination with other eyeglasses. A method is also provided for using the combination.

A headphone apparatus comprising an acoustic unit for converting an audio signal to an acoustic sound, a supporting structure for supporting the acoustic unit keeping a predetermined distance to the ear of a listener and an acoustic equalizer provided in front of the acoustic unit for transferring the sound wave output from the acoustic equalizer to the ear of the listener after correcting the frequency characteristic thereof.

A headphone apparatus includes a plurality of antennas for receiving an FM signal produced by FM-modulating a carrier signal with an audio signal, a plurality of tuning circuits for receiving reception signals of the plurality of antennas, a mixer circuit for causing tuning coils of the tuning circuits to be transformer-coupled to each other and for frequency-converting an output signal of one tuning circuit into an intermediate frequency signal, an FM demodulating circuit for FM-demodulating th...