Title:
【発明の名称】FM変復調システム及びFM変調器
Document Type and Number:
Japanese Patent JP3065919
Kind Code:
B2
Abstract:
Biphase or FM encoding is combined with Flash modulation in infrared (IR) communication. By shrinking the coded pulse width in the modulation process, power dissipation is effectively reduced to the point where FM encoding can be advantageously adapted to IR communication in a synchronous communication system. Noise filtering is also described.
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Inventors:
Perwenba Swaminas Balasubramanian
Nathan Junsap Lee
Scott Douglas Lechsch
Nathan Junsap Lee
Scott Douglas Lechsch
Application Number:
JP26449795A
Publication Date:
July 17, 2000
Filing Date:
October 12, 1995
Export Citation:
Assignee:
International Business Machines Corporation
International Classes:
H03M5/12; H04B10/10; H04L27/10; H04L7/00; H04L25/49; (IPC1-7): H04L25/49; H03M5/12
Domestic Patent References:
| JP5136744A | ||||
| JP51140405A | ||||
| JP5218878A | ||||
| JP380718A | ||||
| JP58116846A |
Other References:
【文献】米国特許5214526(US,A)
Attorney, Agent or Firm:
Hiroshi Sakaguchi (2 outside)