{
  "$type": "site.standard.document",
  "description": "There is provided an electrically heated smoking system comprising a secondary unit (105) capable of receiving a smoking article (107) having an aerosol-forming substrate. The secondary unit comprises at least one heating element (415) and an interface (109) for connection to a primary power supply…",
  "path": "/patents/1002079",
  "publishedAt": "2012-05-23T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "A24B15/167",
    "PHILIP MORRIS PROD [CH]"
  ],
  "textContent": "There is provided an electrically heated smoking system comprising a secondary unit (105) capable of receiving a smoking article (107) having an aerosol-forming substrate. The secondary unit comprises at least one heating element (415) and an interface (109) for connection to a primary power supply (409). The secondary unit further comprises a secondary power supply and secondary circuitry. The secondary circuitry is arranged to control supply of electrical power from the secondary power supply to the at least one heating element in a pre-heating mode during which the temperature of the aerosol-forming substrate is increased to an operating temperature, to control supply of electrical power from the secondary power supply to the at least one heating element in a smoking mode, during which the temperature of the aerosol-forming substrate is maintained at substantially the operating temperature, and to control charging of the secondary power supply by the primary power supply, in a charging mode, so that the secondary power supply has sufficient charge to increase the temperature of the aerosol-forming substrate to the operating temperature in the pre-heating mode and to maintain the temperature of the aerosol-forming substrate at substantially the operating temperature during the smoking mode.",
  "title": "An electrically heated smoking system comprising at least two units"
}