Abstract:
A portable multimedia power supply apparatus (8) for use with computer audio applications comprising a housing (9) having a plurality of female or male interface connectors (13, 15) adaptable to receive and transmitting audio signals from the computer; a power source installed within the apparatus for driving a signal means; at least one audio input means (22A) located on the housing for use with the computer applications; optionally a speaker means located on the housing (9); electrical adaptor means for connecting to or receiving a connection from a sound card means of the computer (21); optionally a switch means (24) located on the housing (9) that provides a computer audio signal solely at the headset input means, or at the headset input means and the speaker means simultaneously; and optionally a headset volume control means (25) located on the housing (9) to adjust the computer audio signal transmitted from the apparatus (8).
Abstract:
A self-supporting headset (10) worn on the ear of a user without a headband (30) or placed in a stand (10 or 40) as a desktop microphone system by a switch-function (100) installed in the headset (10). The headset (10) includes a housing (20) which accommodates a receiver means (21), an arcuate earband (30) connected by a spring (90) to the housing (20) and a pivotally connected boom microphone (50) which extends from the housing (20) to near the lips of a user. The arcuate housing (30) is placed over the entire outer ear to transmit audio signals without any need for an ear tube. An earband member (40) can have a female member (15) on the bottom surface so as to connect a member to mate with a male member (15) located on the stand (10 or 40). The headset (10) can be equipped with noise cancellation technology to remove background noise for optional use on with telephones, computers, or any of the like.
Abstract:
The invention relates to a noise canceling audio transmitting/receiving device; a stereo headset with an integrated array of microphones utilizing an adaptive beam forming algorithm. The invention also relates to a method of using an adaptive beam forming algorithm that may be incorporated into a stereo headset. The sensor array used herein has adaptive filtering capabilities.
Abstract:
This invention relates to a method and an apparatus for reducing ambient noise for use with a headset or a boom headset attached to a boom microphone device or the like. The apparatus can include a sensor microphone to detect a background noise signal, a desired input audio transmission, and signal processing means for canceling the noise signals to create an inverted antinoise signal within an acoustical waveguide located adjacent to the earphone of headset. The method for reducing noise according to this invention is provided by an open loop circuit allowing the input audio signal from an operator or caller to be transmitted to the user's ear without the disturbance of unwanted ambient noise. The method provides ajustments to the gain/or and phase of a noise signal for canceling the noise component detected, within an acoustical waveguide to produce a quiet zone for the desired audio speech to be transmitted. The apparatus can also include a noise cancellation microphone transmitter system having a first and second microphone arranged such that the first microphone receives a desired speech input and the background noise present in the vicinity of the speech, and the second microphone receives substantially only the background noise. The background noise from the second microphone is converted into a corresponding electrical signal and subtracted from a signal corresponding to the speech and background noise obtained from the first microphone so as to produce a signal representing substantial the speech. The active noise cancellation and noise reduction system is enhanced with the following features: an automatic audio microphone transmission by sensing speech (a "VOX" circuit), transmitting portion of microphone signal to earcup speaker by an increased gain sidetone channel ("sidetone"), and converting an active noise cancellation microphone to a standard omni-directional microphone by removing the voice microphone from the circuit design and increasing the gain of the noise microphone amplifier. The first and second microphones may be utilized as a directional microphone according to this invention when a far field response is desired. The method of the invention also relates to the use of a two terminal microphone configuration.
Abstract:
A cellular telephone (8) for reducing background noise includes a housing having a receiver portion and a speaker portion. The receiver portion has a voice port (13) and a noise port (10). A microphone isolator (9) is located within the receiver portion and at least one noise cancelling microphone (12) has a front end and back end enclosed by the microphone isolator (9). A windscreen (14) is placed in front of the microphone internally behind the voice port (13). The telephone includes an acoustical port (15) which permits a pressure gradient noise porting, placed at the back end of the microphone and internally behind the noise port.
Abstract:
Apparatus for reducing acoustic background noise for use with a telephone handset (10) or a boom microphone device (100) or a boom headset (401) or the like. The apparatus includes first (12) and second (14) microphones which are arranged such that the first microphone (12) receives a desired speech input and the background noise present in the vicinity of the speech, and the second microphone (14) receives substantially only the background noise. The background noise from the second microphone (14) is converted into a corresponding electrical signal and substracted (16) from a signal corresponding to the speech and background noise obtained from the first microphone (12) so as to produce a signal representing substantially the speech.
Abstract:
This invention relates to a method and an apparatus for reducing ambient noise for use with a headset or a boom headset attached to a boom microphone device or the like. The apparatus can include a sensor microphone to detect a background noise signal (MIC 14), a desired input audio transmission (MIC 12), and signal processing means (16) for canceling the noise signals to create an inverted antinoise signal within an acoustical waveguide located adjacent to the earphone of headset. The method for reducing noise according to this invention is provided by an open loop circuit allowing the input audio signal from an operator or caller ('FROM TELEPHONE LINES') to be transmitted to the user's ear without the disturbance of unwanted ambient noise.
Abstract:
A self-supporting headset (10) worn on the ear of a user without a headband (30) or placed in a stand (10 or 40) as a desktop microphone system by a switch-function (100) installed in the headset (10). The headset (10) includes a housing (20) which accommodates a receiver means (21), an arcuate earband (30) connected by a spring (90) to the housing (20) and a pivotally connected boom microphone (50) which extends from the housing (20) to near the lips of a user. The arcuate housing (30) is placed over the entire outer ear to transmit audio signals without any need for an ear tube. An earband member (40) can have a female member (15) on the bottom surface so as to connect a member to mate with a male member (15) located on the stand (10 or 40). The headset (10) can be equipped with noise cancellation technology to remove background noise for optional use on with telephones, computers, or any of the like.
Abstract:
A remote control (400), is provided for remotely transmitting key-press signal(s) and speech signal(s) to a CPU enabled device, (200), which recognizes and interprets the speech signal(s) as commands for controlling, in accordance with the interpreted commands and the key-press signal(s), electronic(s) equipment and computer applications coupled thereto. A remote control is provided which includes a keypad having key(s) disposed on the remote control that generates key-press signal(s) in response to keypad presses. A microphone (402), coupled to the remote control receives speech and converts the speech signal(s). A transmitter is provided for transmitting the key-press signal(s) of the keypad and the speech signal(s) of the microphone to the CPU enabled device. In a preferred mode, the CPU enabled device provides speech recognition for recognizing and interpreting the speech signal(s) as speech commands and a controller for controlling, in accordance with the key-press signal(s) and the speech commands, the functions and applications, including internet applications, of electronic(s) equipment coupled thereto including a television, a telephone, a VCR, a stereo and a computer.
Abstract:
An universal active noise reduction apparatus having a headset and a separate electronic sound module, comprising the headset having a housing, whereby the housing having a headband with a first end and a second end; a plurality of earcups having a microphone means for detecting noise signal and a speaker means for receiving audio signals attached to both ends of the headband; electronic connecting means having a first end and a second end, whereby the first end of the electronic connecting means extends from at least one earcup of the headband; an adapter connected to the second end of the electronic connecting means, whereby a plurality of male jacks for transmitting the audio signal protrude from the adapter; the electrical sound module containing a noise reduction circuitry means and an amplifier means, whereby the electrical sound module has at least a plurality of female members that interface with the male jacks of the adapter when inserted into the module for transmitting sound means; and optionally a switch means located on the electrical sound module that activates the active noise reduction circuitry means to cancel background noise prior to being transmitted to a ear of the wearer.