Inventor
Robert J. Schwendeman
Inventor
Pompano Beach, FL, US
Overview
Patents· 58 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Wprimary
H04WWireless communication networks38%
H04BTransmission14%
Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use13%
G08BSignalling systems, e.g. personal calling systems8%
H04MTelephonic communication7%
H04LTransmission of digital information, e.g. telegraphic communication5%
G10LSpeech analysis techniques or speech synthesis4%
H04JMultiplex communication3%
G06FElectric digital data processing2%
G06TImage data processing or generation, in general2%
PatentTitleYear
6,772,126'Method and apparatus for transferring low bit rate digital voice messages using incremental messages'20046,137,867'Alphanumeric message composing method using telephone keypad'20006,073,094'Voice compression by phoneme recognition and communication of phoneme indexes and voice features'20006,052,443'Alphanumeric message composing method using telephone keypad'20006,035,207'System and method for allocating frequency channels in a two-way messaging network'20005,974,121'Alphanumeric message composing method using telephone keypad'19995,974,180'Text compression transmitter and receiver'19995,920,840'Communication system and method using a speaker dependent time-scaling technique'19995,905,945'Method and apparatus for improving the reliability of communicating a message from a portable subscriber unit to a base receiver in a two-way radio messaging system'19995,903,842'System and method for allocating frequency channels in a two-way messaging network'19995,852,780'System and method for allocating frequency channels in a two-way messaging network'19985,805,977'Method and apparatus for controlling transmissions in a two-way selective call communication system'19985,757,281'Multiple acknowledge-back response data paging'19985,737,691'System and method for allocating frequency channels in a two-way messaging network'19985,710,639'Scan line compressed facsimile communication system'19985,710,766'Method and apparatus for sharing a common bandwidth between two protocols in a radio communication system'19985,689,805'Communication system and method providing minimum message transmission delay'19975,689,440'Voice compression method and apparatus in a communication system'19975,686,898'Paging network identification information distributed in address field'19975,649,289'Flexible mobility management in a two-way messaging system and method therefor'19975,617,083'Data communication receiver having variable length message carry-on'19975,600,312'Messaging system and method having roaming capability and controlled group messaging'19975,555,183'Method and apparatus for synchronizing to a synchronous selective call signal'19965,551,061'Apparatus and method in a radio communication system for distinguishing an identifier of a nearby transmitter from that of a more distant transmitter'19965,546,411'Method and apparatus for adaptively selecting a communication strategy in a selective call radio communication system'19965,491,469'Communication system for temporarily directing radio receivers to a second radio frequency'19965,450,071'Method and apparatus for addressing a single message to multiple addresses'19955,446,922'Method and apparatus for switched diversity reception of a radio signal'19955,440,299'Method and apparatus for equalizing battery life in a selective call communication system'19955,423,057'Method and apparatus for sharing signaling formats in a communication channel'19955,416,473'Calendar driven selective call messaging system and operating method'19955,414,419'Battery saving method for selective call receivers'19955,410,417'Method and apparatus for correcting an angle of an optical image for improving the efficiency of facsimile encoding of the image'19955,404,569'Satellite based acknowledge-back paging system'19955,396,537'Reliable message delivery system'19955,392,451'Satellite based acknowledge-back paging system'19955,371,737'Selective call receiver for receiving a multiphase multiplexed signal'19945,371,899'Communication system capable of reassigning radio receivers'19945,325,088'Synchronous selective signalling system'19945,325,403'Method and apparatus for dual-channel diversity reception of a radio signal'19945,315,635'Reliable message communication system'19945,301,354'Satellite based global paging system'19945,289,178'Sensitivity indicator for a radio receiver and method therefor'19945,274,840'Satellite communication system'19935,257,019'Satellite selective call signalling system'19935,252,963'\"Selective call receiver\"'19935,239,306'Dual mode receiver having battery saving capability'19935,239,670'Satellite based global paging system'19935,206,855'Multiple frequency message system'19935,168,493'Time division multiplexed selective call system'19925,128,665'Selective call signalling system'19925,051,993'Mixed modulation level communication system'19915,047,763'Selective call system with message rebroadcasting over another selective call system'19915,010,317'Satellite based simulcast paging system'19914,972,439'Active signalling transmitter control'19904,951,039'Animated data display interleaving'19904,914,649'Multiple frequency message system'1990D0304577'Alphanumeric encoding terminal or similar article'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–2004Patents assigned to MOTOROLA INC (57)· patent assignee history
1989–2004Based in Pompano Beach, FL, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MOTOROLA INC | 57 | 1989–2004 |
Locations
| Location | Patents | Span |
|---|---|---|
| Pompano Beach, Florida, US | 58 | 1989–2004 |