Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Number | Title | Issue Date |
| 5359321 | Remote control device for controlling apparatuses carried on the body, in particular hearing aids Remote control device for controlling apparatuses to be carried on the body, in particular hearing aids, and being provided with a circuit responsive to control signals. In order to give the remote control device a particularly simple and reliable design,... | 10/25/1994 |
| 5343532 | Hearing aid device A device is designed to provide persons with a mild, moderate, severe or profound hearing loss the ability to hear sound that would be inaudible, as well as the ability to hear ambient environmental noise. The device is fabricated as: (1) a receiver assem... | 08/30/1994 |
| 5338287 | Electromagnetic induction hearing aid device An electromagnetic induction type hearing aid which comprises (1) an electromagnetic transmitter having an input for receiving a radiated acoustical signal and an output for radiating an alternating electromagnetic signal whose frequency components are de... | 08/16/1994 |
| 5303306 | Hearing aid with programmable remote and method of deriving settings for configuring the hearing aid A hearing aid is provided which is controlled by a remote control via infrared radiation. The remote control is provided with volume control keys, standardized sound environment keys and custom sound environment keys. When one of these keys is pressed, ne... | 04/12/1994 |
| 5217011 | Method and apparatus for transdermal communication A transdermal communication apparatus and method is disclosed which utilizes a Hall Effect sensor to be implanted within a body and which acts to receive communication transmissions from an externally placed source. The sensor provides improvements relati... | 06/08/1993 |
| 5210803 | Hearing aid having a data storage A hearing aid is provided comprising a microphone, an amplifier, an earphone, and at least one data storage. A large number of detailed hearing aid features are identifiable in an easy way. The data storage forms a component part of an identification mean... | 05/11/1993 |
| 5202927 | Remote-controllable, programmable, hearing aid system A remote-controllable, programmable hearing aid system, including of a hearing aid (2) with incorporated amplifier and with a signal processing circuit whose transmission characteristic can be determined at any time by a set of control parameters, and an ... | 04/13/1993 |
| 5189704 | Hearing aid circuit having an output stage with a limiting means A hearing aid circuit has an output stage which is connectable via an earphone and a battery to a circuit that has an adjustable limiting means for electrically limiting the maximum acoustic output level of the hearing aid. The limiting means is electroni... | 02/23/1993 |
| 5172346 | Method and apparatus for the remote control of a hearing aid means According to a remote control method, sound waves are output by a transmitter as short and long remote control pulses. These pulses are evaluated according to their duration. In order to largely avoid disturbances in the evaluation due to superimposition ... | 12/15/1992 |
| 5012520 | Hearing aid with wireless remote control A control device for a hearing aid is inconspicuously held by a hearing aid user, such as in the palm of the hand, and includes a vibrator which emits a remote control signal at a frequency outside of the audible range of human hearing, and the hearing ai... | 04/30/1991 |
| 4972487 | Auditory prosthesis with datalogging capability An auditory prosthesis is provided with datalogging capability whereby the use of a plurality of settings as selected by the user is maintained. The recorded datalog can be periodically read and used for revising a prosthetic prescription by altering the ... | 11/20/1990 |
| 4947432 | Programmable hearing aid The invention relates to a programmable hearing aid with an amplifier and transmission section whose transmission characteristics can be controlled, with a control unit (1), with a transmitter for wireless transmission of control signals to the hearing ai... | 08/07/1990 |
| 4920570 | Modular assistive listening system A modular assistive listening system is disclosed that employs a hand-held switching/control module to select one or more of the signals transmitted from a plurality of remote input modules. The selected signal is then transmitted to an earphone module th... | 04/24/1990 |
| 4918736 | Remote control system for hearing aids The remote control of an operational parameter, such as the amplification factor (A) of the amplifier (19), of a hearing aid (1) occurs via a control signal in the form of acoustic waves (11) transmitted by a transmitter (10) of a remote control unit (2) ... | 04/17/1990 |
| 4918737 | Hearing aid with wireless remote control A hearing aid has a housing which can be worn at the head, such as in or behind the ear, and which contains the basic electrical and acoustic elements of the hearing aid. The housing has a portion adapted for introduction into the auditory canal, and a co... | 04/17/1990 |
| 4845755 | Remote control hearing aid A hearing aid with wireless remote control of at least one of its controllable functions. The microphone of the hearing aird is used as a receiving element for the control signals. Energy (such as ultrasound) which the hearing aid microphone can transform... | 07/04/1989 |
| 4790019 | Remote hearing aid volume control A hearing aid comprises a microphone, a battery-operated earphone, and amplifying circuit connected to the microphone output, the amplifying circuit including a frequency-selective circuit component and a sound level adjustment circuit component connected... | 12/06/1988 |
| 4777474 | Alarm system for the hearing impaired The present invention is an alarm for the hearing impaired. A base station includes alarm receiving circuits for receipt of alarm signals. These alarm signals could be a telephone ringing signal, a smoke/fire alarm, a doorbell signal or the like. Upon det... | 10/11/1988 |
| 4689820 | Hearing aid responsive to signals inside and outside of the audio frequency range A hearing aid having a microphone (10), a microcomputer (12) for digital signal processing of digitized microphone signals and an electroacoustic converter (14) for acoustic reproduction of the processed digitized signals, is equipped with at least one fu... | 08/25/1987 |
| 4611598 | Multi-frequency transmission system for implanted hearing aids A multi-frequency transmission system for implanted hearing aid includes an external transmitting part and an encapsuled receiver part implantable into middle ear of the user. The transmitting part includes a microphone, a speech processor including a set... | 09/16/1986 |
| 4575586 | Apparatus for use in the adjustment of the secondary adjustment means of a hearing aid An apparatus for use in adjusting a secondary adjustment device of a hearing aid consists of an adaptor that can be so placed on the hearing aid that the adjustment device of the hearing aid becomes coupled to corresponding moving elements on the adaptor.... | 03/11/1986 |
| 4539439 | Plugs, receptacles and hearing aids A connecting cord has a plug at each end. Either such plug may be plugged into the receptacle of a hearing aid and the other plug may be plugged into an external microphone. The contacts of each plug are connected in a different circuit configuration to t... | 09/03/1985 |
| 4361733 | Hard-of-hearing aid appliance A hearing aid appliance has induction loops which are magnetically coupled to hearing aids held individually by hard-of-hearing persons. The number of induction loops is an integral multiple of two, and each induction loop is in the form of a rectangle ha... | 11/30/1982 |
| 4334315 | Wireless transmitting and receiving systems including ear microphones A wireless transmitting and receiving system includes an ear microphone of the vibration pick-up type for picking up bone-conducted voice signals through an external auditory ear canal wall of a wearer. A portable case is disposed adjacent the wearer's ea... | 06/08/1982 |
| 4315111 | Hearing aid with remote momentary shut off switch A battery powered hearing aid has a remote, momentary shut off switch comprised of two leaf plates mounted in a spaced apart relationship, with each leaf plate having an electrical contact extending inwardly and aligned so that pressure against either lea... | 02/09/1982 |
| 4237449 | Signalling device for hard of hearing persons There is disclosed a signalling device for making hard of hearing persons aware of an impending happening in his or her proximity. The device comprises a sound transducer such as a microphone for converting sounds to electrical signals, an amplifier for a... | 12/02/1980 |
| 4052572 | Hearing aid "Hearing" without involving the ear is realized by electrical conduction of the sound-representing signals on a carrier optimally in the frequency range of 15-60 kHz, from an electrode held against a person's head to the auditory cortex and possibly to th... | 10/04/1977 |