Message: In Gazette today 8/14/2012
| US 5,491,774 C1 (9179th) | ||
| HANDHELD RECORD AND PLAYBACK DEVICE WITH FLASH MEMORY | ||
| Elwood G. Norris, Poway, Calif.; Norbert P. Daberko, Oceanside, Calif., and Steven T. Brightbill, San Diego, Calif., assignors to e.Digital Corporation, San Diego, Calif. | ||
| Reexamination Request No. 90/011,302, Oct. 27, 2010. | ||
| Reexamination Certificate for Patent 5,491,774, issued Feb. 13, 1996, Appl. No. 229,731, Apr. 19, 1994. | ||
| Int. Cl. G10L 11/00(2006.01) |
| U.S. Cl. 704—270 |
| AS A RESULT OF REEXAMINATION, IT HAS BEEN DETERMINED THAT: |
| Claims 1 and 19 are cancelled. |
| Claims 2 and 18 are determined to be patentable as amended. |
| Claims 3, 4 and 5, dependent on an amended claim, are determined to be patentable. |
| New claims 23-34 are added and determined to be patentable. |
| Claims 6-17 and 20-22 were not reexamined. |
|
33. A record/playback device for use with a removable, interchangeable, flash memory recording medium which enables extended recording comparable with tape cassette dictating equipment, said device comprising:
a housing;
a microphone element coupled to the housing and configured to receive and process sound into electrical signals;
control circuitry coupled to the microphone element and including signal input circuitry, amplification circuitry, analog-to-digital conversion circuitry, memory control circuitry, signal output circuitry and control logic circuitry, which includes a microprocessor coupled to switch circuitry, for performing record and playback functional operations with respect to the electrical signals and other regulated components of the record/playback device;
switch means coupled to the control circuitry for selecting the desired functional operations to be performed;
a receiving socket electrically coupled to the memory control circuitry and configured for electrical coupling with a flash memory module which operates as sole memory of the received processed sound electrical signals and is capable of retaining recorded digital information for storage in nonvolatile form;
a speaker coupled to the control circuitry for playback of recorded digital information; and
a power source coupled to the control circuitry for supplying electrical power to the device;
wherein the power source is coupled to the switch circuitry; and
wherein the switch circuitry includes multiple transistors configured, to enable supply of electrical power to the receiving socket and to enable at least one of the microphone element and the speaker during record and playback functional operations and in response to contol signals provided by the microprocessor, and to optionally disable supply of electrical power to the receiving socket and to optionally enable supply of electrical power to at least one of the microphone element and the speaker between occurrences of record and playback functional operations and in response to control signals provided by the microprocessor.
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