Bizarre Patents
Neuroimaging as a Marketing Tool
Neuroimaging as a means for validating whether a stimulus such as advertisement, communication, or product evokes a certain mental response such as emotion, preference, or memory, or to predict the consequences of the stimulus on later behavior such as consumption or purchasing.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7187768 | Apparatus for cord-free hands-free telephony A telephone line interface includes a ring detect circuit for activating a RF transceiver and thereby notifying the RF headset of a ringing condition on a telephone line. A wire conversion circuit separates transmit voice signals from receive voice signals and provi... | 03/06/2007 |
| 6731751 | Apparatus for cordless computer telephony An interface apparatus interposed between a cordless telephone base unit and a personal computer sound card. Such interface emulates a Central Office connection with respect to the telephone and a mic and speaker connection with respect to the computer sound card. T... | 05/04/2004 |
| 6681020 | Microphone circuit with mute and keep alive function A microphone system including a microphone for inputting voice data, an output for transmitting the voice data to a device connectable thereto; and a circuit which operates to mute the voice data and provide a signal to the device in order to maintain a s... | 01/20/2004 |
| 6580797 | Amplifier circuit for electret microphone with enhanced performance A circuit for connecting an electret microphone to audio inputs. The circuit includes a coupling circuit for accepting DC bias voltage from the audio inputs and providing audio signal to the inputs. Frequency shaping circuitry is provided for reducing unw... | 06/17/2003 |
| 6504937 | Amplifier circuit for electret microphone with enhanced performance An electret microphone circuit including an electret microphone having a field effect transistor (FET) with a gate coupled to an electret diaphragm, a drain coupled to provide audio frequency output to an audio output node, a source terminal coupled to gr... | 01/07/2003 |
| 6453281 | Portable audio database device with icon-based graphical user-interface A method and apparatus for storing and retrieving information to and from a memory of a hand-held audio database device. The audio database device includes a graphics display provided on a hand-held housing for displaying graphical information. A micropho... | 09/17/2002 |
| 6266424 | Electret microphone circuit with low battery disable A battery circuit for coupling a battery source to an electret microphone. The circuit includes impedance circuitry for providing appropriate bias impedance for a desired microphone sensitivity, and disconnect circuitry for automatically disconnecting the... | 07/24/2001 |
| 6137879 | Computer telephony headset amplifier A computer telephony system including a telephone communication unit operable for initiating and receiving voice calls and a computer operable for providing and receiving voice data. Circuitry is provided for coupling voice data between the computer and t... | 10/24/2000 |
| 6128384 | Self configuring telephone headset amplifier A telephone headset interface circuit is coupled to a telephone line to extract power for use by a headset amplifier and is particularly adapted for use with telephone handsets having dynamic or electret microphones. The telephone line connects a telephon... | 10/03/2000 |
| 5978491 | Circuitry for improving performance of electret microphone In one embodiment of the invention there is provided an electret microphone circuit including an electret microphone including a field effect transistor (FET) having a gate coupled to an electret element, a drain coupled to provide audio frequency output ... | 11/02/1999 |
| 5623544 | Telephone headset interface circuit A telephone headset interface circuit is coupled to a telephone line to extract power for use by a headset amplifier and is particularly adapted for use with telephone handsets having dynamic or electret microphones. The telephone line connects a telephon... | 04/22/1997 |
| 5544243 | Telephone headset interface circuit A telephone headset interface circuit is coupled to a telephone line to extract power for use by a headset amplifier and is particularly adapted for use with telephone handsets having dynamic or electret microphones. The telephone line connects a telephon... | 08/06/1996 |
